QUESTION NO: 1
You are doing a physical site survey of the AMFAB campus.
What four issues are related to the physical placement of network hardware?(chose four.)
A. physical security
B. sufficient HVAC
C. a dust-free environment
D. adequate lighting
E. access to building distribution cabling
F. adequate rack space
Answer: A,B,E,F
QUESTION NO: 2
In what locations will DSP resources need to be configured to minimize WAN traffic and support conferencing and transcoding?
A. The only location that will need DSP resources will be the AMF AB campus in Atlanta
B. DSP resources will only be required at the regional sales offices to convert G.711 to G.729 for WAN
C. DSP resources will be required at the central site to support conferencing, and at the remote sites to support transcoding for the voice mail ststem
D. DSP resources will be required at the central site to support transuding for the voice mail system, and at all sites to support conferencing

Answer: D


QUESTION NO: 3
In their busiest day, AMFAB has 35,422 total minutes of external traffic. Using the answer you determined in question 1, use the following erlang chart snippets to determine the number of T1 circuits needed to connect AMFAB to the PSTN, assuming one call blocked in 100 attempts is acceptable. (See erlang chart at the bottom of the topology.)
A. 4
B. 6
C. They only need six trunk lines. Purchasing a T1 would be a waste of money.

D. 8


E. 7
F. 5
G. They only need five trunk lines. Purchasing a T1 would be a waste of money.

H. 3
Answer: F


QUESTION NO: 4
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. Which of these pieces of information must be addressed in the design of the IP telephony system for AMFAB? (Choose three)
A. Users complain that they receive a fast busy when trying to dial out to the PSTN during the middle of the day.
B. They have entered into negotiations to purchase a small, 45 person consulting engineering firm that specializes in designing and installing lined lagoons and ponds.
C. The monthly cost of long distance is $14,000.00
D. The network is running at 45% of capacity at peak times.
E. They were given a cost estimate of $83,000.00 to upgrade their existing PBX to support IP.
Answer: A,B,D
QUESTION NO: 5
According to best practices, how should the Redmond traffic be classified and marked so that all IP traffic will be handled properly?
A. Mark voice bearer and signaling traffic as CS5; Oracle as CS4; UNIX RPC as CS3; Exchange/Outlook as CS2; HTTP as CS1; and all remaining traffic as BE
B. Mark voice bearer and signaling traffic as EF: Oracle as AF41; UNIX RPC as AF31; Exchange/Outlook as AF21; HTTP as AF11; and all remaining traffic as BE
C. Mark voice bearer traffic as AF41; the voice signaling traffic as AF31; UNIX RPC and Oracle traffic as AF43; and HTTP and Exchange/Outlook as best effort
D. Mark voice bearer traffic as EF; Oracle traffic as AF41; UNIX RPC as AF43; voice signaling traffic as AF31; Exchange/Outlook traffic as AF21; and the HTTP traffic as best effort


Answer: D


QUESTION NO: 6
How should the two CallManager clusters be configured so that IP phone calls can be placed between them?
A. Both CallManager clusters require H.323v2 and should be configured as inter-cluster H.323 devices with gatekeeper control.
B. Both should be configured as H.323v1 devices and should be configured as intra-cluster H.225 devices.
C. Both CallManager clusters require gatekeeper control and the specific gateway to be queried.
D. Communication between sites with CallManager clusters requires H.323 and each cluster must be configured as an intra-cluster H.323 device.
Answer: A


QUESTION NO: 7
The AMFAB domain coordinator is interested in determining how the CallManager servers can be monitored and also determine if the system has been compromised. Which two methods can be used to support these requirements and sill maintain a high degree or security? (Choose two.)
A. Enable SNMP on all CallManager servers and change the default community strings.
B. Turn on event logging in all the CallManager servers and regularly review event logs for the cluster.
C. Send all audit logs to a dedicated log server and filter the reports to view only critical and fatal
D. Provide a uniform level of access to all operators, technicians and system administrators.
E. Enable SNMP for all the devices that support IP telephony in the AMFAB network and change the
Answer: A,B

QUESTION NO: 8
How can high availability be accomplished with a Fast Ethernet or Gigabit Ethernet network?
A. Deploy dual MDF switches, each with dual connections to the IDF switches.
B. Deploy dual MDF switches that each connect to two core switches in the computer room.
C. Deploy dual-connected core switches, each with a single connection to each MDF.
D. Deploy stacked IDF switches that are dual connected to each core switch in the computer room

Answer: B


QUESTION NO: 9
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.

AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.

What are the conferencing guidelines for a single-site deployment? (Choose two.)
A. Use a single type of codec.
B. Group any conferencing resources into MRGLs based on their location, to manage admission control.
C. Make certain that Meet-Me and Ad-hoc conference resource each account for a minimum of 5% of the user base.
D. Use hardware conferencing only for small deployments
Answer: A,C
QUESTION NO: 10
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the

average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. These are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.

It has been decided to integrate WE as a remote site into the new Cisco IP telephone system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.

When you analyze the distribution of the packet sizes from the Redmond facility, you see quickly that there is a potential for delay where voice packets could be trapped behind large data packets. AMFAB is looking to initially determine if the WAN circuit can be reduced in size to 384 Kbps. What is the recommended packet fragmentation size for a 384 kbps WAN circuit using a G.729 codec for voice operating at 50 pps?
A. 288 bytes
B. 320 bytes
C. 480 bytes
D. 48 bytes
E. 100 bytes

Answer: C


QUESTION NO: 11
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional

TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.


AMFAB has been looking at a number of new applications it would like to deploy on the company IP telephone system. They include a company directory on the IP phone, Personal Assistant, unified messaging, and a small call center. Which of these applications would influence the choice of signaling and type for the PSTN connection?
A. Personal Assistant
B. unified messaging
C. company directory
D. small call center.
Answer: D


QUESTION NO: 12
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.

AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec. AMFAB has recently merged with lagoon Technologies in Tampa, Florida. Lagoon Technologies is one of the largest designers of waste lagoons in the United States. The merger allows AMFAB to concentrate on the cogeneration of power from methane collection. Lagoon Technologies is an interesting organization of 500 employees. Of the 500 employees, 84 are at remote sales offices and the remainder is located at the LT headquarters. Their building is round with all administrative staff at the hub. Administrators are shared and this allows LT to have very few employees that would be considered overhead. Lagoon Technologies converted to a Cisco CallManager Express IP phone system earlier this year to standardize on a single voice processing and voice mail platform for each remote sales office. They have also deployed a small Cisco CallManager cluster at the LT headquarters. At the current time there are no overlapping extension numbers in the LT dial plan and all calls are placed over the PSTN. Their system is fully functional and includes Cisco Unity at headquarters and Cisco Unity Express voice mail at the remote sales offices. They have two T1s to the PSTN and a single T1 to a local service provider for Internet access. A fourth and fifth T1 will connect the AMFAB campus to the new Tampa campus. These two T1s will carry voice and data traffic between AMFAB and LT. There are only three groups at the LT campus, corporate administration, engineers, and sales staff. LT has concentrated their sales efforts in the Midwest and southeast areas of the U.S., but they have performed work in all 50 states. They currently have remote sales offices in seven cities located throughout the United States. Each office has between 9 and 12 sales representatives that work in the agricultural, hazardous waste and chemical manufacturing markets. The existing sales offices have Cisco CallManager Express devices with Cisco Unity Express voice mail systems. All the IP phone systems are managed from the LT corporate offices. The Lagoon Technologies headquarters facility is divided into four areas. Each area has an IDF. Each IDF is connected to the MDF in the computer room. Each IDF has stacked Layer 2 switches that support Qos and multiple VLANs. The uplinks between the IDFs and the MDF are via multiple fiber optic connections. Each IDF connects to two different Layer 3 switches in the MDF. All internal HTTP servers connect to an access layer switch and then to two distribution layer switches, which is equivalent to the IDF to MDF connectivity. LT uses an RFC 1918 address range of 172.16.0.0/16 with multiple subnets. All Internal HTTP servers are in the address range of 172.16.10.1/24 through 172.16.10.255/24. LT has two registered Class C addresses provided by their service provider.



Which one of the following represents a best practice for the distributed call-processing environment?
A. Provide high availability for the gateways
B. Use a gatekeeper to resolve the E.164 addresses to IP addresses.
C. For the gatekeeper to be aware of the topology, use a physical hub and spoke topology.
D. Use only one type of codec on the WAN because the MGCP specification does not allow for header overhead in the bandwidth request.
Answer: B


QUESTION NO: 13
Both the AMFAB and LT organizations have fully functional IP telephony solutions. They both use an access code with a two-digit site code followed by a four-digit extension dial internally. How should the dial plan be designed for calls dialed from AMFAB to a DN at Lagoon Technologies?
A. Use a different access code than used for on-net dialing and create a translation pattern to reach the DN at LT.
B. Deploy a new route group that use E.164 addresses and the IP WAN as the primary path and the PSTN if the IP WAN is busy.

C. Send a fully qualified E.164 address to the gatekeeper for resolution.
D. Use a fully qualified E.164 address and send it to the gateway for resolution.
Answer: C


QUESTION NO: 14
AMF AB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta. Georgia. uses a PBX for it campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found:
922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total or 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the internet; they are set up with

HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner. The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering service group. The design group will become part of the AMFAB engineering services; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.
It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings.
To save WAN costs, the network coordinator would like to deploy a 512 kbps point-to-point WAN link between the AMFAB campus and Redmond.


There is a concern about voice quality over the link. In reviewing the estimated WAN traffic patterns, you see that voice will be approximately 45% of the traffic and there are no other real-time applications on the link. Which three of the folloing tools will help to insure that the bandwidth is used as efficiently as possible and the highest voice quality is attained? (Choose three.)
A. LFI
B. Traffic policing
C. Traffic shaping

D. LLQ
E. cRTP

F. CBWFQ
Answer: A,D,E
QUESTION NO: 15
In their busiest hour. AMF AB has 1338 busy hour call attempts
Given that the average call hold time is 7.8 minutes, calculate the number of erlangs from AMF AB's daily call minutes (round the nearest 10th )
A. 434.8
B. 173.9
C. 2.9

D. 289.9

E. 104.4
Answer: B


QUESTION NO: 16
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP.

The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.

In their busiest day, AMFAB has 35,422 total minutes of external traffic. Given that the busiest hour is 17% of the daily total, calculate the number of erlangs from AMFAB's daily call minutes (round to the nearest 10th).
A. 60.2
B. 73.8
C. 167.2
D. 1.7
E. 100.4
Answer: E


QUESTION NO: 17
AMF AB understands that the existing dial plan may not be able to handle the planned growth. The planned growth will push the number of DIDs over one thousand. How should AMF AB handle the planned growth?
A. By using translation patterns. AMF AB won??t need to get an additional range of DISs
B. AMF AB will be able to implement route patterns that will allow the company to support the new employees without new DID ranges
C. AMF AB will need to obtain another range of DIDs
D. AMF AB will need another range of DID to support the growth, but can simplify the dial plan with three-digit dialing.

Answer: C


QUESTION NO: 18
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found:
922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pair each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility pans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C house the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.

AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner. The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.
It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings.
AMFAB has completed its IP telephony rollout. The legacy PBX has been removed, the entire phone system is now on IP using Cisco CallManager for call processing control.
AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales region offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta.
The AMFAB central campus and regional sales offices will use the G.711 codec locally. The G.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link.

At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec.

There may be times when the IP WAN I out of capacity. What CallManager technology should be deployed so that calls will not cross the WAN when the WAN is at full capacity?
A. CAC
B. ARC
C. TEHO
D. NEHO
E. AAR


Answer: A


QUESTION NO: 19
The AMF AB domain coordinator is interested in determining how CallManager servers can be secured. Along with virus scanning, what other ways can the CallManager servers be protected from attacks from viruses and worms? (Choose three.)
A. On a regular basis, apply the latest operating system patches from Microsoft
B. Deploy a stateful firewall between the internet and AMF AB CallManager cluster
C. Disable IP phones from being able to auto-register with CallManager
D. Apply the latest CallManager security patches from Cisco on a regular basis
E. Include host based intrusion detection in the CallManager cluster design
Answer: C,D,E
QUESTION NO: 20
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found:
922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B and C has a combination MDF/IDF on the ground floor, with an IDF on each

upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cable using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C house the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner. The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.
It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings.


Even though the Atlanta campus is highly available, a distribution router failure could result in a telephone outage in Redmond. What can be done to minimize the impact of such a failure?
A. Start CallManager Express on the Redmond gateway when communications with Atlanta are lost
B. Enable AAR on the Redmond WAN router.
C. Implement SRST on the Redmond gateway.
D. Configure CoR on the Atlanta WAN router.

Answer: C


QUESTION NO: 21
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.


AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec. AMFAB has recently merged with lagoon Technologies in Tampa, Florida. Lagoon Technologies is one of the largest designers of waste lagoons in the United States. The merger allows AMFAB to concentrate on the cogeneration of power from methane collection. Lagoon Technologies is an interesting organization of 500 employees. Of the 500 employees, 84 are at remote sales offices and the remainder is located at the LT headquarters. Their building is round with all administrative staff at the hub. Administrators are shared and this allows LT to have very few employees that would be considered overhead. Lagoon Technologies converted to a Cisco CallManager Express IP phone system earlier this year to standardize on a single voice processing and voice mail platform for each remote sales office. They have also deployed a small Cisco CallManager cluster at the LT headquarters. At the current time there are no overlapping extension numbers in the LT dial plan and all calls are placed over the PSTN. Their system is fully functional and includes Cisco Unity at headquarters and Cisco Unity Express voice mail at the remote sales offices. They have two T1s to the PSTN and a single T1 to a local service provider for Internet access. A fourth and fifth T1 will connect the AMFAB campus to the new Tampa campus. These two T1s will carry voice and data traffic between AMFAB and LT. There are only three groups at the LT campus, corporate administration, engineers, and sales staff. LT has concentrated their sales efforts in the Midwest and southeast areas of the U.S., but they have performed work in all 50 states. They currently have remote sales offices in seven cities located throughout the United States. Each office has between 9 and 12 sales representatives that work in the agricultural, hazardous waste and chemical manufacturing markets. The existing sales offices have Cisco CallManager Express devices with Cisco Unity Express voice mail systems. All the IP phone systems are managed from the LT corporate offices. The Lagoon Technologies headquarters facility is divided into four areas. Each area has an IDF. Each IDF is connected to the MDF in the computer room. Each IDF has stacked Layer 2 switches that support Qos and multiple VLANs. The uplinks between the IDFs and the MDF are via multiple fiber optic connections. Each IDF connects to two different Layer 3 switches in the MDF. All internal HTTP servers connect to an access layer switch and then to two distribution layer switches, which is equivalent to the IDF to MDF connectivity. LT uses an RFC 1918 address range of 172.16.0.0/16 with multiple subnets. All Internal HTTP servers are in the address range of 172.16.10.1/24 through 172.16.10.255/24. LT has two registered Class C addresses provided by their service provider.


Which four attributes must be considered when designing a secure IP telephony solution? (Choose four.)
A. creation and assignment of VLANS and broadcast domains
B. placement of application layer gateways
C. reserve NAT and stateful inspection to segments that connect to the Internet
D. stateful inspection of all packets on the corporate intranet
E. implementation of packet filters and the establishment of firewalls
F. protection of voice at layer 2
Answer: A,B,E,F
QUESTION NO: 22
In the event of a WAN failure, AMFAB would like the regional offices to be able to continue to function without having to resort to cell phones. Which technology will be in use during a WAN

failure, and which gateway protocol will be used? (Choose two.)
A. MGCP
B. H.323
C. SIP
D. SRST
E. CME
Answer: B,D
QUESTION NO: 23
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers.

The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec.

AMFAB plans to deploy fax machines at each location. These devices will send and receive faxes to both internal and external locations. For sending internal and long distance faxes, the WAN links will be used. External local faxes will be sent via the PSTN gateway.

AMFAB would like to conserve as much bandwidth as possible when faxes are sent across the WAN. Which two methods of fax transmission will satisfy that requirement? (Choose two.)
A. T.30
B. Cisco fax relay
C. T.38

D. T.4
E. Cisco fax pass-through
Answer: B,C


QUESTION NO: 24
Form the following list, select the information that is relevant to choosing an IP telephony single-site call processing model. (Choose two.)
A. all external calls use the PSTN
B. a single 6-story building with an IDF on each floor and an MDF in the computer room on the second floor
C. VPN connectivity to contractors and suppliers
D. corporate HQ with multiple regional sales offices

E. dual connectivity to service providers for Internet access and multiple PRLs to the PSTN
F. no remote offices or campuses
Answer: B,F

QUESTION NO: 25
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found:
922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Mot of thee calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-dight dialing for extension-to-extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building ha two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with

HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider.
AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.
It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings.


With respect to the function of LLQ, how does the operation of the priority queue (PQ) differ from the class-based weighted fair queues (CBWFQ)?
A. The CBWFQs are set to a minimum bandwidth that is policed. The PQ is set to a maximum bandwidth that is also policed.
B. Both queuing methods work in a similar manner. The difference is in the classification methods.
C. The PQ is set to a maximum bandwidth that is policed. Each queue within the CBWFQ is set for a minimum bandwidth that can be metered on a per queue basis to control bandwidth consumption.
D. The PQ uses a minimum bandwidth that uses an internal metering method that drops packets as the bandwidth gets closer the maximum threshold. The CBWFQs are set to a minimum bandwidth per queue and controlled through metering as each queue reaches a maximum level.

Answer: C


QUESTION NO: 26
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.

During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
On the basis of information discovered during the investigation phase of the design, it has been decided that the single-site call processing model is the proper deployment model for AMFAB. The access layer devices will be placed in the IDFs, the distribution layer devices will be placed in the MDFs, and the core will be deployed in the computer room. Each IDF services approximately 70 to 75 users.
AMFAB is using Token Ring with an FDDI backbone. The network is to be migrated to an Ethernet network. AMFAB has had many network outages in their current network, and is concerned with network availability, especially as the phone system will now be residing on the same network.


IT wants to implement the simplest MoH transport mechanism, and is unconcerned about bandwidth consumption. What type of MoH transport mechanism will support this requirement, and how many simultaneous MoH sessions should be planned for? (Choose two.)
A. 45
B. 13
C. 36
D. 18
E. 12
F. unicast
G. multicast
Answer: D,F

QUESTION NO: 27
Which of these pieces of information must be addressed in the design of the IP telephony system for AMF AB? (Choose three.)
A. AMF AB has seen a 15% increase in traffic to their website with the announcement of a new methane monitoring solution
B. The active internet gateway is running at 55% of peak capacity
C. The property that houses the AMF AB R&D facility, scale house, and test lagoons has recently been annexed by a neighboring city
D. AMF AB is using a public IP addressing scheme. They have four contiguous Class C addresses
E. The current PBX has a proprietary connection to the current voice-mail system.
Answer: C,D,E QUESTION NO: 28



You are in a meeting with the AMF AB telephony services manager and the data network manager.
What four of the following are questions you would ask to obtain the information needed for the design of the IP telephony network? (Choose four.)
A. Who is responsible for moving telephones within AMB AB?
B. Can additional servers or additional domains be added to the existing AMF AB domain?
C. What network access method and topology is deployed?
D. What COR is deployed in the existing network?
E. How many cable paths are available to each IDF?
F. What is the current traffic level and distribution of applications on the network?
Answer: B,C,E,F
QUESTION NO: 29
What is a major drawback of the 2:1 redundancy scheme?
A. Failover time is twice as long as with the 1:1 redundancy scheme.
B. The backup server must have twice the capacity of the primary servers.
C. CallManager software upgrades will cause phone outages.
D. The processing load doubles on the backup server when a primary server fails.

Answer: C


QUESTION NO: 30
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone,

for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
On the basis of information discovered during the investigation phase of the design, it has been decided that the single-site call processing model is the proper deployment model for AMFAB. The access layer devices will be placed in the IDFs, the distribution layer devices will be placed in the MDFs, and the core will be deployed in the computer room. Each IDF services approximately 70 to 75 users.
AMFAB is using Token Ring with an FDDI backbone. The network is to be migrated to an Ethernet network. AMFAB has had many network outages in their current network, and is concerned with network availability, especially as the phone system will now be residing on the same network. 4-1 AMFAB's traffic distribution is as follows: Oracle - 27% Internal HTTP 11% external HTTP 9%

UNIX RPC 33% Microsoft Office traffic 6% Enterprise resource planning (ERP) 12% Overhead (routing updates, SNMP, etc.) 2%

The Oracle traffic and the ERP traffic are the most critical to operations. UNIX RPC and internal HTTP are next in importance, and final in importance are Microsoft Office and external HTTP. Since QoS is not deploved. How would you distribute the applications across an IDF switch that supports WRR with 4Q1T?
A. Queue 1- Microsoft Office, external HTTP Queue 2-UNIX RPC, internal HTTP Queue 3- voice bearer traffic Queue 4- voice signaling traffic, Oracle, ERP, overhead
B. Queue 1- voice bearer traffic Queue 2- voice signaling traffic, Oracle, ERP, overhead Queue 3- UNIX RPC, internal HTTP Queue 4- Microsoft Office, external HTTP
C. Queue 1-Microsoft Office, external HTTP Queue 2-UNIX RPC, internal HTTP Queue 3-voice signaling traffic, Oracle, ERP, overhead Queue 4-voice bearer traffic
D. Queue 1- Oracle, ERP, overhead Queue 2- Microsoft Office, external HTTP Queue 3- UNIX RPC, internal HTTP Queue 4- voice signaling traffic, voice bearer traffic
Answer: C


QUESTION NO: 31
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation here is what there is to be found:

922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company??s converged network.
During preliminary investigation, here is what there is to be found:
922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cable using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C house the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.

AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner. The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.
It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings.
AMFAB has completed its IP telephony rollout. The legacy PBX has been removed, the entire phone system is now on IP using Cisco CallManager for call processing control.
AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales region offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta.
The AMFAB central campus and regional sales offices will use the G.711 codec locally. The G.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link.

At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec. Each of the new regional sales offices has the same four-digit extension number range, 0100. At least two of the offices share the same last six digits in their telephone numbers. Please see the provided AMFAB directory. (The directory is located at the bottom of the topology.)

The Dallas, Denver, and Fresno regional sales offices have the same seven-digit telephone number. How can the dial plan be developed so that extension 1023 in Dallas doesn't overlap with extension 1023 in Denver and Fresno?
A. Dial the last seven DID digits.
B. Dial the last six DID digits.
C. Use translation patterns with four-digit dialing to route calls properly
D. Use eleven-digit dialing.

E. Use a two-digit site code and four-digit dialing
Answer: E


QUESTION NO: 32
One possible cluster arrangement for AMFAB is to use two MCS- 7835 servers in a 1:1 redundancy scheme with 50-50 load balancing. The cluster will support 5000 device units and 2500 phones. You have calculated that one of the servers will be supporting 312 non-IP phone weight values. There will be 8 phones with a BHCA of 15 registered to this server, along with 12 phone with a BHCA of 8. What is the maximum number of phones with a BHCA of 6 or fewer that this one server can support in this arrangement?
A. 890
B. 2452
C. 1097
D. 2140
E. 2670
F. 1202
G. 2194
Answer: F


QUESTION NO: 33
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance).

AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider.
AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec. AMFAB has recently merged with lagoon Technologies in Tampa, Florida. Lagoon Technologies is one of the largest designers of waste lagoons in the United States. The merger allows AMFAB to concentrate on the cogeneration of power from methane collection. Lagoon Technologies is an interesting organization of 500 employees. Of the 500 employees, 84 are at remote sales offices and the remainder is located at the LT headquarters. Their building is round with all administrative staff at the hub. Administrators are shared and this allows LT to have very few employees that would be considered overhead. Lagoon Technologies converted to a Cisco CallManager Express IP phone system earlier this year to standardize on a single voice processing and voice mail platform for each remote sales office. They have also deployed a small Cisco CallManager cluster at the LT headquarters. At the current time there are no overlapping extension numbers in the LT dial plan and all calls are placed over the PSTN. Their system is fully functional and includes Cisco Unity at headquarters and Cisco Unity Express voice mail at the remote sales offices. They have two T1s to the PSTN and a single T1 to a local service provider for Internet access. A fourth and fifth T1 will connect the AMFAB campus to the new Tampa campus. These two T1s will carry voice and data traffic between AMFAB and LT.

There are only three groups at the LT campus, corporate administration, engineers, and sales staff. LT has concentrated their sales efforts in the Midwest and southeast areas of the U.S., but they have performed work in all 50 states. They currently have remote sales offices in seven cities located throughout the United States. Each office has between 9 and 12 sales representatives that work in the agricultural, hazardous waste and chemical manufacturing markets. The existing sales offices have Cisco CallManager Express devices with Cisco Unity Express voice mail systems. All the IP phone systems are managed from the LT corporate offices. The Lagoon Technologies headquarters facility is divided into four areas. Each area has an IDF. Each IDF is connected to the MDF in the computer room. Each IDF has stacked Layer 2 switches that support Qos and multiple VLANs. The uplinks between the IDFs and the MDF are via multiple fiber optic connections. Each IDF connects to two different Layer 3 switches in the MDF. All internal HTTP servers connect to an access layer switch and then to two distribution layer switches, which is equivalent to the IDF to MDF connectivity. LT uses an RFC 1918 address range of 172.16.0.0/16 with multiple subnets. All Internal HTTP servers are in the address range of 172.16.10.1/24 through 172.16.10.255/24. LT has two registered Class C addresses provided by their service provider.

The AMFAB campus IP telephony solution needs to support E911 services. Buildings A, B, and C are four stories high with each floor having 10,000 square feet of office space. The R&D facility has a single floor with 8,000 square feet. The Scale building is a single floor with 750 square feet.

The AMFAB telephony coordinator is concerned that the current E911 services are not properly configured, and wants to correct that situation. What needs to be considered at the AMFAB campus? (choose two.)
A. the number of ESZs per building
B. the number of digits that are sent as the CLID to the ERL
C. the number of employees in the organization
D. the distance from the PSAP
E. the type of gateway required to connect to the LEC
Answer: B,D
QUESTION NO: 34
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new

features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
In the past, AMFAB has experienced several phone outages, one of which lasted over seven hours when the company's current PBX had a software crash. Telephone communications are critical, so AMFAB would like to design the IP telephony solution to be scaleable and highly available.


When deciding upon a cluster server redundancy scheme, what must you consider? (Choose three.)
A. the impact on the users during system backups
B. the failover time for each scheme
C. whether the publisher is dedicated or has devices registered to it
D. the likelihood of multiple primary server failures
E. the number of IP phones registered on the subscribers.
F. the impact on the users during software upgrades
Answer: D,E,F

QUESTION NO: 35
What additional best practice should be adhered to for the distributed call-processing environment?
A. Use only one type of codec on the LAN.
B. Build full-mesh connectivity between Atlanta, Redmond, and the LT main office in Tampa.
C. Provide a highly available gatekeeper.
D. Have a gateway resolve the E.164 addresses to IP addresses.

Answer: C


QUESTION NO: 36
IT wants to minimize the amount of bandwidth consumed by MoH streams. What type of MoH transport mechanism can satisfy these requirements, and what is the maximum number of simultaneous MoH messager that can be streaming at any one time? (Choose two.)

A. 13
B. 1
C. 8
D. 5
E. 26
F. Multicast
G. unicast
Answer: A,F
QUESTION NO: 37
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found:
922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phone, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDF are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All building on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced

by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.
It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings.
With the estimated amount of voice and data traffic between Redmond and Atlanta, it has been decided that a 512k circuit will probably not handle the load during peak period. It has been decided that a T1 circuit will be installed.


How many voice calls could be placed between Redmond and the AMFAB campus, assuming no deader compression is used and data consumes 45% of the L3 T1 bandwidth?
A. 17
B. 9
C. 35
D. 19

E. 26
F. 24
G. 32
Answer: E


QUESTION NO: 38
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found:
922 employees, of which 868 have phones that are DID. The rest are lobby and break room

phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings.

The Redmond network traffic is much better documented. The current traffic pattern is as follows:
HTTP 30% Exchange/Outlook 9% UNIX RPC 40% Oracle 18% Overhead (routing updates, SNMP, etc.) 3%
The Oracle traffic is considered the most important, followed by UNIX RPC, Exchange/Outlook, and HTTP.

According to best practices, how should outgoing WAN traffic be queued so that all IP traffic will be handled properly?
A. Place the voice bearer traffic in the AF41 queue, the voice signaling traffic in the AF 31 queue, UNIX RPC and Oracle traffic in the AF43 queue, and HTTP and Exchange/Outlook traffic in best-effort queue.
B. Place voice bearer and signaling traffic in the high priority queue, UNIX RPC and Oracle into the medium priority queue, HTTP and Exchange/Outlook into the normal queue, all remaining traffic placed into the low priority queue.
C. Place the voice bearer traffic in the priority queue, the UNXI RPC and Oracle traffic in the AF41 queue, the voice signaling traffic in the AF31 queue, the Exchange/Outlook traffic in the AF21 queue, and the HTTP traffic in the best effort queue.
D. Place voice signaling traffic in the priority queue with the voice bearer traffic. Place the remainder of the traffic in a Custom Queue as follows: UNIX PC and Oracle will go into the normal queue, HTTP and Exchange/Outlook will go into the default queue, and the overhead traffic will go into the best-effort queue.

Answer: C


QUESTION NO: 39
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.

AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec. AMFAB has recently merged with lagoon Technologies in Tampa, Florida. Lagoon Technologies is one of the largest designers of waste lagoons in the United States. The merger allows AMFAB to concentrate on the cogeneration of power from methane collection. Lagoon Technologies is an interesting organization of 500 employees. Of the 500 employees, 84 are at remote sales offices and the remainder is located at the LT headquarters. Their building is round with all administrative staff at the hub. Administrators are shared and this allows LT to have very few employees that would be considered overhead. Lagoon Technologies converted to a Cisco CallManager Express IP phone system earlier this year to standardize on a single voice processing and voice mail platform for each remote sales office. They have also deployed a small Cisco CallManager cluster at the LT headquarters. At the current time there are no overlapping extension numbers in the LT dial plan and all calls are placed over the PSTN. Their system is fully functional and includes Cisco Unity at headquarters and Cisco Unity Express voice mail at the remote sales offices. They have two T1s to the PSTN and a single T1 to a local service provider for Internet access. A fourth and fifth T1 will connect the AMFAB campus to the new Tampa campus. These two T1s will carry voice and data traffic between AMFAB and LT. There are only three groups at the LT campus, corporate administration, engineers, and sales staff. LT has concentrated their sales efforts in the Midwest and southeast areas of the U.S., but they have performed work in all 50 states. They currently have remote sales offices in seven cities located throughout the United States. Each office has between 9 and 12 sales representatives that work in the agricultural, hazardous waste and chemical manufacturing markets. The existing sales offices have Cisco CallManager Express devices with Cisco Unity Express voice mail systems. All the IP phone systems are managed from the LT corporate offices. The Lagoon Technologies headquarters facility is divided into four areas. Each area has an IDF. Each IDF is connected to the MDF in the computer room. Each IDF has stacked Layer 2 switches that support Qos and multiple VLANs. The uplinks between the IDFs and the MDF are via multiple fiber optic connections. Each IDF connects to two different Layer 3 switches in the MDF. All internal HTTP servers connect to an access layer switch and then to two distribution layer switches, which is equivalent to the IDF to MDF connectivity. LT uses an RFC 1918 address range of 172.16.0.0/16 with multiple subnets. All Internal HTTP servers are in the address range of 172.16.10.1/24 through 172.16.10.255/24. LT has two registered Class C addresses provided by their service provider.



You are using an H.225 gatekeeper controlled trunk between a CallManager cluster and a gateway. When designing the security component for the CallManager clusters, what can result if you use a firewall between a CallManager cluster and the voice and data VLANs? (Choose two.)
A. clipping of the voice stream
B. echo
C. one-way audio
D. call setup failure
E. choppy audio
Answer: C,D
QUESTION NO: 40
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found:
922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone,

for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB

engineering services; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.
It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings.

What problem occurs if a user from the Redmond facility is temporarily assigned to the Atlanta campus, and the user takes their IP phone and uses it in Atlanta?
A. Every on-net call placed by the user will reduce the available WAN voice bandwidth even if it does not cross the WAN link.
B. There is no problem. The phone will register with the same CallManager subscriber as before and operate correctly.
C. Every call received by the user will first traverse the WAN link and be rerouted by the Redmond gateway.
D. Every internal call placed by the user will cross the WAN to the Redmond gateway to be routed correctly.


Answer: A


QUESTION NO: 41
Currently, AMFAB has not decided if it will implement an IP contact center for the technical support group. As an interim step, calls to the technical support group need to be distributed in a round-robin. Can this be accomplished?
A. No, IP Contact Center is needed.
B. Yes, by implementing hunt groups.
C. Yes, by routing calls via an IVR unit.
D. Yes, with route groups.
E. Yes, by using call pick-up groups.
Answer: B


QUESTION NO: 42
One possible cluster arrangement for AMFAB is to use two MCS- 7830 servers in a 1:1 redundancy scheme with 50-50 load balancing. The cluster will support 3000 device units and 1500 phones. You have calculated that one of the servers will be supporting 312 non-IP phone weight values. There will be 8 phones with a BHCA of 15 registered to this server, along with 12 phone with a BHCA of 8. What is the maximum number of phones with a BHCA of 6 or fewer that this one server can support in this arrangement?
A. 1140
B. 702
C. 414
D. 1188
E. 438
F. 390
G. 1452
Answer: E


QUESTION NO: 43
During migration from Token Ring to Ethernet, routers will be deployed to allow access between the existing Token Ring and the new Ethernet networks. Where in the network should these routers be deployed?

A. at each MDF so that each IDF can be migrated separately and possible wide-spread network outages
B. at the core of the network so that each IDF can continue to use the FDDI backbone.
C. in the computer room so that the Token Ring and Ethernet networks are only connected at one location to minimize risk
D. in the individual IDFs so that individual users can be migrated from the Token Ring to the Ethernet network to minimize each individuals down time.
Answer: A


QUESTION NO: 44
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers.

The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec.

AMFAB plans to deploy fax machines at each location. These devices will send and receive faxes to both internal and external locations. For sending internal and long distance faxes, the WAN links will be used. External local faxes will be sent via the PSTN gateway.

AMFAB's telephony coordinator believes that most conferences will be local to each site. Which deployment model for resources to support conferencing and transcoding will fit the requirements for AMFAB?
A. Decentralized
B. Local
C. Hybrid, the larger sites will use decentralized DSP resources and the smaller sites will use centralized DSP resources.
D. Centralized
Answer: A


QUESTION NO: 45
Which four methods can be used to protect IP phones? (Choose four.)
A. Disable the Settings button
B. Use a firewall with the CallManager cluster to prevent attacks from inside and outside the organization
C. Dedicate a TFTP server for each voice network segment
D. Use signed loads

E. Disable the PC port
F. Prevent/Restrict/Disable GARP
Answer: A,D,E,F
QUESTION NO: 46 DRAG DROP
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.

AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec. AMFAB has recently merged with lagoon Technologies in Tampa, Florida. Lagoon Technologies is one of the largest designers of waste lagoons in the United States. The merger allows AMFAB to concentrate on the cogeneration of power from methane collection. Lagoon Technologies is an interesting organization of 500 employees. Of the 500 employees, 84 are at remote sales offices and the remainder is located at the LT headquarters. Their building is round with all administrative staff at the hub. Administrators are shared and this allows LT to have very few employees that would be considered overhead. Lagoon Technologies converted to a Cisco CallManager Express IP phone system earlier this year to standardize on a single voice processing and voice mail platform for each remote sales office. They have also deployed a small Cisco CallManager cluster at the LT headquarters. At the current time there are no overlapping extension numbers in the LT dial plan and all calls are placed over the PSTN. Their system is fully functional and includes Cisco Unity at headquarters and Cisco Unity Express voice mail at the remote sales offices. They have two T1s to the PSTN and a single T1 to a local service provider for Internet access. A fourth and fifth T1 will connect the AMFAB campus to the new Tampa campus. These two T1s will carry voice and data traffic between AMFAB and LT. There are only three groups at the LT campus, corporate administration, engineers, and sales staff. LT has concentrated their sales efforts in the Midwest and southeast areas of the U.S., but they have performed work in all 50 states. They currently have remote sales offices in seven cities located throughout the United States. Each office has between 9 and 12 sales representatives that work in the agricultural, hazardous waste and chemical manufacturing markets. The existing sales offices have Cisco CallManager Express devices with Cisco Unity Express voice mail systems. All the IP phone systems are managed from the LT corporate offices. The Lagoon Technologies headquarters facility is divided into four areas. Each area has an IDF. Each IDF is connected to the MDF in the computer room. Each IDF has stacked Layer 2 switches that support Qos and multiple VLANs. The uplinks between the IDFs and the MDF are via multiple fiber optic connections. Each IDF connects to two different Layer 3 switches in the MDF. All internal HTTP servers connect to an access layer switch and then to two distribution layer switches, which is equivalent to the IDF to MDF connectivity. LT uses an RFC 1918 address range of 172.16.0.0/16 with multiple subnets. All Internal HTTP servers are in the address range of 172.16.10.1/24 through 172.16.10.255/24. LT has two registered Class C addresses provided by their service provider.



Answer:



QUESTION NO: 47
You are doing a physical site survey of the AMF AB campus.
What questions will need to be answered about each network closet to insure that the physical network devices can be deployed successfully? (Choose two.)
A. Is enough electrical power available for each network closet?

B. Does AMF AB have an office numbering scheme?
C. Are there any extra cable runs pulled to each office that are not terminated?
D. Are any of the cable runs shared between voice and data two-pairs for voice and two-pairs for data)?
E. Are the IDF stacked on top each other or are they offset in each building?
F. Is each cable run to the closet within the maximum distance specification?
Answer: A,F
QUESTION NO: 48
In designing the CallManager cluster for high availability, what must you include in your design? (Choose two.)
A. redundant gateway connections to the PSTN.
B. the deployment of a dedicated publisher and dedicated TFTP server
C. all members of the cluster needing to be in the same LAN or MAN
D. using a 1:1 redundancy scenario in the CallManager cluster
E. dedicated servers for MoH and conferencing
Answer: B,D

QUESTION NO: 49 DRAG DROP
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found:
922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones.
Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes.
There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls.
There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls.
The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance).
AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up.

Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data.
Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs.
Each station in the R&D building has two Category 5 UTP cable drops, plus phone.
All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable.
The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C.
Building C houses the main computer room that contains all the company servers.
The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s).
There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP.
The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire

phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec.

Answer: QUESTION NO: 50




There is a concern about voice quality over the link. In reviewing the estimated WAN traffic patterns, you see that voice will be approximately 25% of the traffic and there are no other real-time applications on the link. Which two of the folloing tools will help to insure that the highest voice quality is attained? (Choose two.)
A. traffic shaping
B. LFI
C. LLQ
D. CBWFQ
E. traffic policing
F. cRTP
Answer: B,C

QUESTION NO: 51
From the following list, select the information that is relevant to choosing an IP telephony centralized call processing model.
A. multiple PRIs to the PSTN
B. Ccentralized order processing, shipping, and billing for all customer products
C. three small regional sales offices located in the three Western time zones
D. connectivity to a single service provider that hosts the company web site and provides for Internet access E. a campus of six buildings connected via an ATM backbone

F. a single 6-story building with an IDF on each floor and an MDF in the computer room on the second floor

Answer: C


QUESTION NO: 52
The AMFAB domain coordinator is interested in determining how the CallManager servers can be secured. Which three unused Windows services need to be disabled on subscriber servers? (Choose three)
A. TFTP
B. Network Time Protocol

C. NTFS
D. IIS
E. DHCP
F. the registry
Answer: A,C,F

QUESTION NO: 53
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough

bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. These are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.
It has been decided to integrate WE as a remote site into the new Cisco IP telephone system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.


In the traditional three-tier network design, at what layer will the Redmond office connect to the existing AMFAB network?
A. The Redmond office will become another access layer attachment to the distribution layer at the AMFAB campus.
B. The Redmond office will become a sublayer to the access layer at the AMFAB campus.
C. The Redmond office will become the equivalent to a server block and will attach to the core of the AMFAB network.
D. The Redmond office will become a WAN block attachment to the distribution layer of the AMFAB campus network.

Answer: D


QUESTION NO: 54
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls.

There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
On the basis of information discovered during the investigation phase of the design, it has been decided that the single-site call processing model is the proper deployment model for AMFAB. The access layer devices will be placed in the IDFs, the distribution layer devices will be placed in the MDFs, and the core will be deployed in the computer room. Each IDF services approximately 70 to 75 users.
AMFAB is using Token Ring with an FDDI backbone. The network is to be migrated to an Ethernet network. AMFAB has had many network outages in their current network, and is concerned with network availability, especially as the phone system will now be residing on the same network.


To provide the fastest response to an outage in the connection between the access layer, distribution layer and core of the AMFAB network, what protocols should be deployed?
A. L3 at the access layer running OSPF with the L3 core over the L2 distribution layer
B. L2 access layer with per-VLAN spanning tree (PVST) with an L2 distribution layer, with common spanning tree (CST) running with an L3 core, with OSPF in the core
C. L3 at the access distribution, and core layers, with OSPF as the routing protocol running on all devices
D. L2 at the access layer with per-VLAN spanning tree (PVST) with an L3 distribution layer, with runs OSPF with an L3 core
E. L3 at the access and distributions layers running OSPF across a loop-free L2 core with no spanning tree.
Answer: D


QUESTION NO: 55
From a perspective of securing an IP telephony solution, what is a benefit of deploying separate subnets for IP phones and their attached PCs?
A. conserves IP addresses
B. prevents an attacker or attacking application from snooping on a common wire
C. reduces granularity of QoS deployment
D. preserves stateful inspection of application packets
Answer: B
QUESTION NO: 56
You are doing a physical site survey of the AMF AB campus.

You noticed that the facility is divided by County Line Road, which is the boundary between Cobb and Fulton counties. What issue needs to be addressed for the IP telephony design?
A. whether separate call data information will need to be kept for both counties
B. whether the phones in each county require overlapping extension numbers
C. whether calls from the AMF AB buildings in Cobb County incur a toll charge when calling the AMF AB buildings in Fulton County.
D. whether a PSTN connection in bldg C can route emergency calls to the correct PSAP for the buildings in Cobb County
E. whether the tax rate for telephony in Cobb County is different from what it is in Fulton County
Answer: D


QUESTION NO: 57
You are in a meeting with the AMFAB telephony services manager and the data network manager. What information do you need to obtain to assist you in the design of the IP telephony solution? (Choose four.)
A. the number of phones that have DID
B. the number of servers supporting the R&D facility
C. the measures AMFAB has implemented to secure the network
D. bandwidth available to connect to the Internet
E. which group of users spends the most time on their phones
F. which group of users contributes the most traffic to the network
G. what type of dialing plan is deployed at AMFAB
H. how the PBX is cabled from each MDF to each IDF and to each desk location
Answer: A,E,G,H
QUESTION NO: 58
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.


It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec.


Which gateway signaling protocol will provide AMFAB with the highest call survivability at the remote sites in the event of a WAN failure?
A. SCCP
B. SIP
C. H.323
D. MGCP


Answer: C


QUESTION NO: 59
As several AMFAB campuses will have overlapping extension numbers, how should the dial pattern for inter-office dialing be setup?

A. Dial the last seven DID digits.
B. Use translation patterns with four-digit dialing to route calls properly.
C. Use eleven-digit dialing.
D. Use a two-digit access code and four-digit extension.
E. Dial the last six DID digits.
Answer: D


QUESTION NO: 60
The users in the new Redmond office have an open office environment where teams can be easily clustered to work on projects. What issues need to be considered in the design of the LAN to support this type of work environment?(Choose three)
A. How much traffic will clusters of workers add to the network?
B. Can the network infrastructure designed for the AMFAB campus be used in Redmond?
C. How many VLANs will be required to support this office?
D. Does each project team require a separate VLAN?
E. How many new locations will need fiber-optic cable drops?
Answer: B,C,D
QUESTION NO: 61
Each IDF will function at Layer 2. Which deployment solution will provide the highest availability and still provide for in-line power to the IP phones? (Choose two.)
A. Use the present dual-cable drop to each desktop, providing in-line power on the cable the current data device is connected to.
B. Using the current data cable drop, deploy a dual VLAN solution where FLP would make the determination of providing in-line power.
C. Deploy a chassis solution with dual connections to the MDF.
D. Use the present dual-cable drop to each desktop, providing in-line power on both drops and use FLP to make the determination of providing in-line power.
E. Deploy a stackable switch solution with dual connections from each switch to the MDF.
F. Deploy a single chassis-based switch with dual Layer 3 supervisors and a single connection to the MDF.
Answer: B,C QUESTION NO: 62



As the new Ethernet network is deployed with QoS, it will be important to assign a trust boundary. Which two are the optimum locations where network devices can be trusted to apply QoS correctly?(Choose two.)
A. IP phone
B. distribution layer switch
C. core layer switch
D. access layer switch
E. PC
Answer: A,D
QUESTION NO: 63
It has been calculated that data will consume 60% of the available L3 bandwidth on the T1 circuit. What is the maximum number of voice calls that could be placed between Redmond and the AMFAB campus without using header compression?
A. 9
B. 32
C. 26
D. 23

E. 19
F. 17
G. 35
Answer: E


QUESTION NO: 64
The Oracle traffic and the ERP traffic are the most critical to operations. UNIX RPC and internal HTTP are next in importance, and final in importance are Microsoft Office and external HTTP. Since QoS is not deploved. How would you distribute the applications across an IDF switch that supports WRR with 4Q1T?
A. Queue 1 - voice bearer traffic Queue 2 - voice signaling traffic, Oracle, UNIX, overhead Queue 3 - ERP, internal HTTP Queue 4 - Microsoft Office, external HTTP
B. Queue 1 - Microsoft office, external HTTP Queue 2 - ERP, internal HTTP Queue 3 - voice signaling traffic, Oracle, UNIX, overhead Queue 4 - voice bearer traffic
C. Queue 1- Microsoft Office, external HTTP Queue 2 - ERP, internal HTTP Queue 3 - voice bearer traffic Queue 4 - voice signaling traffic, Oracle, UNIX, overhead D. Queue 1 - voice signaling traffic, oracle, UNIX, overhead Queue 2- Microsoft Office, external HTTP Queue 3 - ERP, internal HTTP Queue 4 - voice signaling traffic, voice bearer traffic

Answer: B


QUESTION NO: 65
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with

HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider.
AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.
It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with CallManager cluster at AMFAB's central campus.

The current network at the new Redmond facility will not support IP telephony. What three services need to be considered in the selection of hardware for this facility? (Choose three)

A. 10/100/1000 to the desktop
B. LAN QoS
C. In-line-power
D. LAN support
E. Web-based configuration tools
Answer: B,C,D
QUESTION NO: 66
What are four general E911 responsibilities of an enterprise telephony system? (Choose four.)
A. Allow conferencing with internal security personnel.
B. Provide a detailed map of all ERLs.
C. Route calls to the appropriate point (on-net and off-net).
D. Deliver appropriate CLID digits to LEC.
E. Facilitate the update of ALI records.
F. Enable PSAP call-back to 911 call originator.
Answer: C,D,E,F

QUESTION NO: 67
You are in a meeting with the AMF AB telephony services manager and the data network manager.
You need information on the PBX and the voice-mail system. What four pieces of information will be of benefit? (Choose four.)
A. the manufacturer, model, and capacity of the PBX and voice mail systems
B. the power requirements for the PBX and voice mail systems
C. the connection type between the PBX and the PSTN
D. the number of PBX outages in the last year and if that number violated their uptime expectations
E. how the voice mailboxes are deployed in the telephone system
F. the person who performs the adds, moves, and changes at AMF AB
G. the current PBX vendors response time for service
Answer: A,C,D,E QUESTION NO: 68



AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus. AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections the PSTN but will use the connection with AMFAB to carry internal calls and for internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX has been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales region offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The G.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec.

AMFAB has recently merged with Lagoon Technologies in Tampa, Florida. Lagoon Technologies is one of the largest designers of waste lagoons in the United Stated. The merger allows AMFAB to concentrate on the cogeneration of power from methane collection. Lagoon Technologies is an interesting organization of 500 employees. Of the 500 employees, 84 are at remote sales offices and the remainder is located at the LT headquarters. Their building is round with all administrative staff at the hub. Administrators are shared and this allows LT to have very few employees that would be considered overhead. Lagoon Technologies converted to a Cisco CallManager Express IP phone system earlier this year to standardize on a single voice processing and voice mail platform for each remote sales office. They have also deployed a small Cisco CallManager cluster at the LT headquarters. At the current time there are no overlapping extension numbers in the LT dial plan and all calls are placed over the PSTN. Their system is fully functional and includes Cisco Unity at headquarters and Cisco Unity Express voice mail at the remote sales offices. They have two T1s to the PSTN and a single T1 to a local service provider for Internet access. A fourth and fifth T1 will connect the AMFAB campus to the new Tampa campus. These two T1s will carry voice and data traffic between AMFAB and LT. There are only three groups at the LT campus, corporate administration, engineers, and sales staff. LT has concentrated their sales efforts in the Midwest and southeast areas of the U.S., but they have performed work in all 50 states. They currently have remote sales offices in seven cities located throughout the United States. Each office has between 9 and 12 sales representatives that work in the agricultural, hazardous waste and chemical manufacturing markets. The existing sales offices have Cisco CallManager Express devices with Cisco Unity Express voice mail systems. All the IP phone systems are managed from the LT corporate offices. The Lagoon Technologies headquarters facility is divided into four areas. Each area has an IDF. Each IDF is connected to the MDF in the computer room. Each IDF has stacked Layer 2 switches that support Qos and multiple VLANs. The uplinks between the IDFs and the MDF are via multiple fiber optic connections. Each IDF connects to two different Layer 3 switches in the MDF. All internal HTTP servers connect to an access layer switch and then to two distribution layer switches, which is equivalent to the IDF to MDF connectivity. LT uses an RFC 1918 address range of 172.16.0.0/16 with multiple subnets. All Internal HTTP servers are in the address range of 172.16.10.1/24 through 172.16.10.255/24. LT has two registered Class C addresses provided by their service provider. With the merger of AMFAB and LT, it has been decided to integrate the present LT phone system with AMFAB's CallManger system as a distributed call processing environment.


According to best practices, what should the two CallManager clusters use to communicate with each other?
A. intercluster trunk, gatekeeper controlled
B. SIP trunk
C. intercluster trunk, non-gatekeeper controlled

D. H.225 trunk
Answer: A


QUESTION NO: 69
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend

cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec.


From the following list select the devices that can be accessed by route groups. (Choose four.)
A. H.248 intracluster trunks
B. Intercluster trunk not gatekeeper controlled
C. H.323 gateways
D. MGCP gateways
E. H.225 trunk
F. SIP gateway
Answer: B,C,D,E
QUESTION NO: 70

AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.


Which four of the following parameters must be considered for the AMFAB CallManager hardware selection? (Choose four)
A. the number of devices the cluster will support
B. whether load balancing is required between servers in the cluster.
C. the type of Call Admission Control (CAC) the cluster will support
D. the BHCA multiplier to device weights for busier devices.
E. the dial plan weights for the cluster
F. the MoH transport mechanism
Answer: A,B,D,E
QUESTION NO: 71
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.

AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth

savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec.


A route pattern exists in Partition "site1_Local" and an identical route pattern exists in Partition "HQ _ Local". A calling search space containing "site1_Local" is assigned to a device and a calling search space containing "HQ _ Local" is assigned to a line on that device. How does CallManager determine which route pattern to use?
A. CallManager concatenates the two CSSs and gives priority to partitions in the CSS assigned to the device.
B. CallManager concatenates the two CSSs and gives priority to partitions in the CSS assigned to the line.
C. CallManager does a logical OR of the partitions in the two CSSs and searches for the longest mstch.
D. CallManager uses only the CSS associated with the line.
E. CallManager uses only the CSS associated with the device.


Answer: B


QUESTION NO: 72
This area is intentionally left blank From the following list of customer attributes, choose the correct IP telephony call processing model: -A large campus that spans multiple PSAP areas. -A single group of buildings each with its own computer room.
A. distributed call processing
B. centralized call processing
C. single-site call processing
D. hybrid call processing
Answer: C


QUESTION NO: 73
What can be done to reduce the size of the dial plan database in a centralized call processing deployment?
A. Use the @ route plan to reduce the number of dial plan entries
B. Use specific route patterns for local PSTN access to reduce the size f the dial plan
C. Use the @ wildcard to represent the entire North American Numbering Plan
D. Use specific route filters to reduce the number of dial plan entries
Answer: B


QUESTION NO: 74
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.


It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec. AMFAB has recently merged with lagoon Technologies in Tampa, Florida. Lagoon Technologies is one of the largest designers of waste lagoons in the United States. The merger allows AMFAB to concentrate on the cogeneration of power from methane collection. Lagoon Technologies is an interesting organization of 500 employees. Of the 500 employees, 84 are at remote sales offices and the remainder is located at the LT headquarters. Their building is round with all administrative staff at the hub. Administrators are shared and this allows LT to have very few employees that would be considered overhead. Lagoon Technologies converted to a Cisco CallManager Express IP phone system earlier this year to standardize on a single voice processing and voice mail platform for each remote sales office. They have also deployed a small Cisco CallManager cluster at the LT headquarters. At the current time there are no overlapping extension numbers in the LT dial plan and all calls are placed over the PSTN. Their system is fully functional and includes Cisco Unity at headquarters and Cisco Unity Express voice mail at the remote sales offices. They have two T1s to the PSTN and a single T1 to a local service provider for Internet access. A fourth and fifth T1 will connect the AMFAB campus to the new Tampa campus. These two T1s will carry voice and data traffic between AMFAB and LT. There are only three groups at the LT campus, corporate administration, engineers, and sales staff. LT has concentrated their sales efforts in the Midwest and southeast areas of the U.S., but they have performed work in all 50 states. They currently have remote sales offices in seven cities located throughout the United States. Each office has between 9 and 12 sales representatives that work in the agricultural, hazardous waste and chemical manufacturing markets. The existing sales offices have Cisco CallManager Express devices with Cisco Unity Express voice mail systems. All the IP phone systems are managed from the LT corporate offices.

The Lagoon Technologies headquarters facility is divided into four areas. Each area has an IDF. Each IDF is connected to the MDF in the computer room. Each IDF has stacked Layer 2 switches that support Qos and multiple VLANs. The uplinks between the IDFs and the MDF are via multiple fiber optic connections. Each IDF connects to two different Layer 3 switches in the MDF. All internal HTTP servers connect to an access layer switch and then to two distribution layer switches, which is equivalent to the IDF to MDF connectivity. LT uses an RFC 1918 address range of 172.16.0.0/16 with multiple subnets. All Internal HTTP servers are in the address range of 172.16.10.1/24 through 172.16.10.255/24. LT has two registered Class C addresses provided by their service provider.

Which of the following technologies will allow you to design a solution for protecting voice at layer 2?(Choose three.)
A. RFC 1918 addressing
B. internal VPNs
C. port security
D. private VLANs
E. Dynamic ARP inspection
F. Locally administered MAC addresses
Answer: C,D,E
QUESTION NO: 75

The AMFAB campus crosses county boundaries. Suppose the two counties are in different area codes, but are serviced by the same LEC. If AMFAB uses two PRI interfaces to make E911 calls to the different PSAPs, what must be correctly planned for?
A. Each county PSAP must maintain ALI databases information for both sides of the AMFAB campus.
B. The ELINs must be properly mapped in each ANI database.
C. It must be ensured that the CPN will be used for ANI and falls within a range of numbers acceptable on the link.
D. The ALI numbers provided must yield the appropriate routing and CPN lookup.

Answer: C


QUESTION NO: 76
Including the current 895 phones, what would be the minimum number of DIDs required for all the employees if each new phone has two line appearances?
A. 404
B. 2194
C. 1790
D. 1097
E. 202
F. 895
Answer: D


QUESTION NO: 77
AMFAB has found that the commercial deployment of methane collection systems can sometimes require technical support outside of normal operating hours. AMFAB would like to deploy a call center to develop the skills necessary to provide phone, chat, and e-mail support. The company would like to start with five agents and grow to twenty agents. They would like to be able to identify the caller's name on the agent's phone but they do not plan on integrating the phone system with their customer database. Which of these connection types would be applicable for use with the planned contact center?
A. CAS
B. E&M
C. PRI
D. FXS


E. FXO
Answer: C


QUESTION NO: 78
AMF AB is currently using four contiguous registered Class C addresses for their network. AMF AB's service provider said it could give AMF AB more address space, but at quite a high cost, and the new addresses would not be in a contiguous block with the ones AMF AB currently uses. Which option would make the most business sense for AMF AB?
A. Maintain their current registered address space, obtain one more registered Class C address range for growth, and deploy RFC 1918 addresses for the new IP telephony solution.
B. Keep the current registered address ranges and migrate internal addresses to RFC 1918 addresses as the company moves off Token Ring network to the Ethernet network.
C. Keep one the two registered address ranges and migrate the entire network over to an RFC 1918 address range prior to the IP telephony deployment.
D. Readdress the network with new registered addresses now so that all the IP address issues can be worked out prior to the IP telephony deployment.
Answer: B


QUESTION NO: 79 DRAG DROP
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.

AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control.

AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec.

Answer: QUESTION NO: 80



AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found:
922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pair each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility pans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C house the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.

AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner. The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated.
It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings.
AMFAB has completed its IP telephony rollout. The legacy PBX has been removed, the entire phone system is now on IP using Cisco CallManager for call processing control.
AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales region offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta.
The AMFAB central campus and regional sales offices will use the G.711 codec locally. The G.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link.
At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec.


There may be time when the IP WAN is out of capacity. What CallManager technology should be deployed so that calls can be completed when the WAN is at full capacity?
A. NEHO
B. TEHO
C. ARC
D. CAC
E. AAR
Answer: E QUESTION NO: 81



Which of the following technologies will allow you to design a solution for protecting voice at Layer 2? (Choose three.)
A. IP source guard
B. Secure ARP detection
C. DHCP snooping
D. Internal VPNs
E. Locally administered MAC addresses
F. RFC 1918 addressing
Answer: A,B,C
QUESTION NO: 82
You are doing a physical site survey of the AMFAB campus.
You noticed on the site map that the facility is divided by County Line Road. This is actually the boundary between Cobb and Fulton counties. What issue needs to be addressed for the IP telephony design?
A. if separate call data information needs to be kept for both counties
B. if a PSTN connection in bldg C can route emergency calls to the correct PSAP for the buildings in Cobb County
C. if the tax rate for telephony is different between Cobb County and Fulton County.
D. if the phones in each county require overlapping extension numbers
E. if calls from the AMFAB buildings in Cobb County will incur a toll change when calling the AMFAB buildings in Fulton County.

Answer: B


QUESTION NO: 83
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.

During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
On the basis of information discovered during the investigation phase of the design, it has been decided that the single-site call processing model is the proper deployment model for AMFAB. The access layer devices will be placed in the IDFs, the distribution layer devices will be placed in the MDFs, and the core will be deployed in the computer room. Each IDF services approximately 70 to 75 users.
AMFAB is using Token Ring with an FDDI backbone. The network is to be migrated to an Ethernet

network. AMFAB has had many network outages in their current network, and is concerned with network availability, especially as the phone system will now be residing on the same network.

What is the maximum number of conferences that a single DSP resource will support?
A. 6 if the callers are using medium complexity codecs, 3 for high complexity codecs.
B. 12 callers, there is no codec complexity issue.
C. 6 callers, there is no codec complexity issue.
D. 12 if the callers are using medium complexity codecs, 6 for high complexity codecs.
Answer: C


QUESTION NO: 84
T1 circuits needed to connect AMF AB to the PSTN, assuming one call blocked in 100 attempts is acceptable (See erlang chart at the bottom of the topology )
A. 20
B. 14
C. 9
D. 6
E. They only need eight trunk lines. Purchasing a T1 would be a waste of money.

Answer: C


QUESTION NO: 85
In a centralized call processing model, what is a disadvantage of using the traditional approach for building classes of service (as compared to the line/device approach)?

A. The maximum number of calling search spaces = (number of classes of service) * (number of sites)
B. The maximum number of calling search spaces = (number of classes of service) + (number of sites)
C. The minimum number of partitions = (number of classes of service) * (number of sites) + (1 partition for all IP phone DNs)
D. The minimum number of partitions = (number of classes of service) + (number of sites) + (1partition for all IP phone DNs)
Answer: D


QUESTION NO: 86
Each IDF currently supports a single ring per floor no matter how many different departments are on that floor. Which VLAN deployment scheme would provide each department with load balancing, high availability, and security on a per-floor basis?
A. Each department would use two VLANs, one for data and one for voice. These VLANs would be trunked over redundant uplinks from the IDF to the MDF.
B. Each floor would use two VlANs no matter how many departments are located there. The two VLANs would have a primary and backup path on each up link from the IDF to the MDF.
C. Since most departments are small, each department would use a single VLAN for data and voice. Each departmental VLAN would be trunked from the IDF to the MDF over two paths, a primary and a backup.
D. Each department would have a separate data and voice VLAN. Both departmental VLANs would be trunked over a single path from the IDF to the MDF.
Answer: A


QUESTION NO: 87
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes.

There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.

AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec. AMFAB has recently merged with lagoon Technologies in Tampa, Florida. Lagoon Technologies is one of the largest designers of waste lagoons in the United States. The merger allows AMFAB to concentrate on the cogeneration of power from methane collection. Lagoon Technologies is an interesting organization of 500 employees. Of the 500 employees, 84 are at remote sales offices and the remainder is located at the LT headquarters. Their building is round with all administrative staff at the hub. Administrators are shared and this allows LT to have very few employees that would be considered overhead. Lagoon Technologies converted to a Cisco CallManager Express IP phone system earlier this year to standardize on a single voice processing and voice mail platform for each remote sales office. They have also deployed a small Cisco CallManager cluster at the LT headquarters. At the current time there are no overlapping extension numbers in the LT dial plan and all calls are placed over the PSTN. Their system is fully functional and includes Cisco Unity at headquarters and Cisco Unity Express voice mail at the remote sales offices. They have two T1s to the PSTN and a single T1 to a local service provider for Internet access. A fourth and fifth T1 will connect the AMFAB campus to the new Tampa campus. These two T1s will carry voice and data traffic between AMFAB and LT. There are only three groups at the LT campus, corporate administration, engineers, and sales staff. LT has concentrated their sales efforts in the Midwest and southeast areas of the U.S., but they have performed work in all 50 states. They currently have remote sales offices in seven cities located throughout the United States. Each office has between 9 and 12 sales representatives that work in the agricultural, hazardous waste and chemical manufacturing markets. The existing sales offices have Cisco CallManager Express devices with Cisco Unity Express voice mail systems. All the IP phone systems are managed from the LT corporate offices. The Lagoon Technologies headquarters facility is divided into four areas. Each area has an IDF.

Each IDF is connected to the MDF in the computer room. Each IDF has stacked Layer 2 switches that support Qos and multiple VLANs. The uplinks between the IDFs and the MDF are via multiple fiber optic connections. Each IDF connects to two different Layer 3 switches in the MDF. All internal HTTP servers connect to an access layer switch and then to two distribution layer switches, which is equivalent to the IDF to MDF connectivity. LT uses an RFC 1918 address range of 172.16.0.0/16 with multiple subnets. All Internal HTTP servers are in the address range of 172.16.10.1/24 through 172.16.10.255/24. LT has two registered Class C addresses provided by their service provider.

The AMFAB network coordinator is concerned that the IP phones can be targeted for malicious attack, specifically Ettercap and VOMIT. When the security is designed for the IP telephony solution, which two methods can be used to break these two malicious attacks? (choose two.)
A. Isolate the IP phone VLAN from the PC.
B. Ensure the PC port is disabled if a PC is not attached.
C. Ensure the IP phone firmware is validated with the CallManager.
D. Ensure the CallManager is configured to disable acceptance of GARP on IP phones.
Answer: A,D
QUESTION NO: 88
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new

features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings, a single story R&D facility, and a scale building. It will be your job to determine what information is needed for the proper design of the company's converged network.
During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to-extension calls,and dialing 9 for outside calls(local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundles for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet; they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring.
AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover.
AMFAB has been growing slowly over the last four years. During that time the company has become the leader in methane recovery systems for dairy and hog operations. AMFAB expects more growth from recent changes to federal air quality regulations. The company is planning to

expand as follows: Marketing will double in size to 24 employees The Southeast Region will grow from 90 to 150 employees. The Midwest region will grow from 95 to 130 employees The Southwest region will grow from 85 to 95 employees. R&D will grow from 35 to 60 employees and will be split between the R&D building and the bottom floor in Building B. The Project Management group will grow from 30 to 90 employees. Each of the 202 new users will have a dedicated phone.

AMFAB has contacted its LEC to obtain an additional range of DIDs. The company's current DID range is 555-0000 through 555-0999. The LEC can provide AMFAB with an additional range of numbers, 556-0000 through 556-3999. The LEC is currently sending AMFAB four digits inbound. The two DID ranges overlap. What can be used to resolve this solution? (Choose two.)
A. Pick a number that would be used to prefix all existing three digit extensions.
B. Ask the current LEC to send 5 digits.
C. Contact an alternative ILEC to see if it can provide a DID range that does not overlap with the current range.
D. Move to a 6-digit dial plan to provide more dialing granularity for all extension number.
Answer: A,B

QUESTION NO: 89
At the Dallas regional office you plan to have a 128 kbps Frame Relay connection with Crtp enabled. Voice calls crossing the WAN will use the G.729 codec. Given that the L3 bandwidth consumption should not exceed 75% of the link bandwidth, what is the maximum number of calls that this link can support when a fax pass-through call is in progress and 28kbps of bandwidth needs to be reserved for data?

A. 2
B. 3
C. 6
D. 1
E. 0
F. 4
G. 5


Answer: B


QUESTION NO: 90
Where in the existing network would the optimum location be to trust network devices to apply QoS correctly?
A. core layer switch
B. access layer switch
C. distribution layer switch
D. PC
Answer: B


QUESTION NO: 91
You are in a meeting with the AMFAB telephony services manager and the data network manager. What four pieces of information will be important for you to capture from this meeting? (Choose four.)
A. the IP addressing scheme
B. the type of network design currently in place
C. the current integration of voice and data in the AMFAB network
D. the type and size of the power circuits in each MDF and IDF
E. the capacity of the link to the Internet
F. the manufacturer, type and number of devices in the network
Answer: A,B,D,F
QUESTION NO: 92
The users in the new Redmond office have an open office environment where teams can be easily clustered to work on projects. What issues need to be considered in the design of the LAN to support this type of work environment?(Choose three)

A. the amount of power that is available to support new LAN switches
B. the amount of rack space in the equipment rack
C. the type of wiring in the office
D. the number of PSTN connections needed
E. the number of public IP addresses available
Answer: A,B,C

QUESTION NO: 93
Which two types of interfaces can be used to support dynamic ANI for E911? (Choose two.)
A. PRI
B. E&M
C. FXO
D. CAMA
Answer: A,D


QUESTION NO: 94
Which cluster design would provide AMFAB with the highest redundancy and scalability, assuming 1200 users, 100 MoH sessions, and 24 conferencing sessions?
A. A dedicated TFTP server and a dedicated publisher. Two subscribers(one primary and one back-up) that support MoH and conferencing.
B. A single publisher/TFTP server. Two subscriber servers(one primary and one back-up) that also support conferencing and a dedicated MoH server.
C. A dedicated TFTP server and dedicated publisher. Two subscriber servers load balancing 50/50. A dedicated MoH and conferencing server.
D. A single publisher and TFTP server combined. Two subscriber servers(primary and back-up). One subscriber will support conferencing and the other MoH.

Answer: C


QUESTION NO: 95
AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new features that AMFAB requires, so the company has decided to change its system from traditional TDM to IP telephony. The campus currently has approximately 922 users in three four-story office buildings a single story R&D facility and a scale building It will be your job to determine what

information is needed for the proper design of the company's converged network. During preliminary investigation, here is what there is to be found: 922 employees, of which 868 have phones that are DID. The rest are lobby and break room phones, departmental phones, etc. for a total of 895 phones. Each employee with DID has a personal mailbox, as does every department with a group phone, for a total of 881 voice mail boxes. There are 12 people in marketing, each of whom uses the phone considerably more than the average user does. Most of these calls are external calls. There are 7 people in technical support, each of whom uses the phone considerably more than the average user does. Most of these calls are internal calls. The current dial plan uses four-digit dialing for extension-to extension calls, and dialing 9 for outside calls (local and long distance). AMFAB doesn't have a current traffic analysis of their network. They believe they have enough bandwidth for anything they might want to run, including IP telephony, but have no concrete documentation to back that up. Each of buildings A, B, and C has a combination MDF/IDF on the ground floor, with an IDF on each upper floor. The IDFs are connected to the MDFs via multiple 25-pair cable bundies for phones and two pairs each multimode fiber optic cable for data. Each of the 895 phones is cabled using Category 3 UTP cable out from the IDFs. Each station in the R&D building has two Category 5 UTP cable drops, plus phone. All buildings on the campus are data-connected via an FDDI ring with the exception of the scale building, which is connected to the R&D building via Category 5 UTP cable. The AMFAB facility spans two counties, so the R&D building and the scale building are serviced by a different PSAP than are buildings A through C. Building C houses the main computer room that contains all the company servers. The main computer room in Building C also contains the PBX with PSTN connectivity, and the Internet connection(s). There is a pair of Cisco 2514 routers providing connectivity to the Internet: they are set up with HSRP. The data network was built using token ring LANs connected via the FDDI ring. AMFAB is interested in migrating its phone system to IP telephony, vs. a massive weekend cutover. AMFAB has recently acquired Wingo Engineering (WE) in Redmond, WA. Wingo is a small consulting engineering company that specializes in the treatment of agricultural effluent. Wingo has 28 employees in a single building. For Internet access, the company has a five-year-old Ethernet LAN with a T1 connection to a local service provider.. The Wingo phone system consists of a four-year-old key system. The company has four departments. They are sales and marketing, engineering services, administration, and design. All calls enter the company through the company operator who then uses the overhead paging system to inform users of incoming calls. Wingo also has a website that is hosted by the local service provider. AMFAB plans to integrate the Wingo Engineering staff in the following manner: The sales and marketing group will be split between the AMFAB marketing group and the AMFAB northwest

sales region. These two groups consist of two marketing employees and six sales employees. Engineering services will become part of the AMFAB project management group. There are 10 people in the WE engineering services group. The design group will become part of the AMFAB engineering services ; there are eight people in the WE design group. There are two employees in administration; their jobs will be absorbed into AMFAB administration and the positions eliminated. It has been decided to integrate WE as a remote site into the new Cisco IP telephony system at AMFAB. All IP phones will register with the CallManager cluster at AMFAB's central campus.
AMFAB plans to connect with WE via a point-to-point circuit. The Redmond office will maintain external connections to the PSTN but will use the connection with AMFAB to carry internal calls and for Internet connectivity. Internal calls crossing the WAN will use a G.729 codec for bandwidth savings. AMFAB has completed its IP telephony rollout. The legacy PBX HAS been removed, the entire phone system is now on IP using Cisco CallManager for call processing control. AMFAB has decided to open regional sales offices to put their sales staff closer to their customers. The new offices will be connected to the AMFAB campus via a Frame Relay network (please refer to the WAN map for more detail). The Northwest and Southeast sales reqion offices are located in the Redmond and Atlanta facilities. Each site will have a PSTN gateway for local and emergency calls. All calls to and from the regional offices as well as long distance calls should use the IP WAN as much as possible. Call processing will remain centralized in Atlanta. The AMFAB central campus and regional sales offices will use the G.711 codec locally. The g.729 codec will be used when calls cross the WAN, and cRTP will be implemented on each link. At the current time the voice mail system will be centralized with the CallManager and only supports the G.711 codec. AMFAB has recently merged with lagoon Technologies in Tampa, Florida. Lagoon Technologies is one of the largest designers of waste lagoons in the United States. The merger allows AMFAB to concentrate on the cogeneration of power from methane collection. Lagoon Technologies is an interesting organization of 500 employees. Of the 500 employees, 84 are at remote sales offices and the remainder is located at the LT headquarters. Their building is round with all administrative staff at the hub. Administrators are shared and this allows LT to have very few employees that would be considered overhead. Lagoon Technologies converted to a Cisco CallManager Express IP phone system earlier this year to standardize on a single voice processing and voice mail platform for each remote sales office. They have also deployed a small Cisco CallManager cluster at the LT headquarters. At the current time there are no overlapping extension numbers in the LT dial plan and all calls are placed over the PSTN. Their system is fully functional and includes Cisco Unity at headquarters and Cisco Unity Express voice mail at the remote sales offices. They have two T1s to the PSTN and a single T1 to a local service provider for Internet access. A fourth and fifth T1 will connect the AMFAB campus to the new Tampa campus. These two T1s will carry voice and data traffic between AMFAB and LT. There are only three groups at the LT campus, corporate administration, engineers, and sales staff. LT has concentrated their sales efforts in the Midwest and southeast areas of the U.S., but they have performed work in all 50 states. They currently have remote sales offices in seven cities located throughout the United States. Each office has between 9 and 12 sales representatives that work in the agricultural, hazardous waste and chemical manufacturing markets. The existing sales offices have Cisco CallManager Express devices with Cisco Unity Express voice mail systems. All the IP phone systems are managed from the LT corporate offices. The Lagoon Technologies headquarters facility is divided into four areas. Each area has an IDF. Each IDF is connected to the MDF in the computer room. Each IDF has stacked Layer 2 switches that support Qos and multiple VLANs. The uplinks between the IDFs and the MDF are via multiple fiber optic connections. Each IDF connects to two different Layer 3 switches in the MDF. All internal HTTP servers connect to an access layer switch and then to two distribution layer switches, which is equivalent to the IDF to MDF connectivity. LT uses an RFC 1918 address range of 172.16.0.0/16 with multiple subnets. All Internal HTTP servers are in the address range of 172.16.10.1/24 through 172.16.10.255/24. LT has two registered Class C addresses provided by their service provider.


How should the dial plan be configured to support failover if the gatekeeper rejects a call because of insufficient bandwidth?
A. A route pattern should point to a route group to the IP WAN as the first choice and a second route group to the PSTN as a second choice.
B. A route pattern should be configured for the IP WAN and a second route pattern should be configured for the PSTN as a second choice.
C. A route list should be configured to point at a route group to the IP WAN as the first choice and a route group to the PSTN as the second choice.

D. A route group should point to the gateway connected to the H.323 inter-cluster trunk and also point to a second gateway connected to the PSTN as a second choice.
Answer: C


QUESTION NO: 96
At the Dallas regional office you plan to have a 128 kbps Frame Relay connection with cRTP enabled. Voice calls crossing the WAN will use the G.729 codec. This office will initially support four sales representatives. Assume that you would like to be able to carry four voice calls and a fax pass-through call simultaneously. Will it be possible to support this amount of traffic over this link with cRTP enabled?
A. No, the maximum 75% L3 link utilization cannot be exceeded.
B. Yes, this is within the recommended limits of bandwidth utilization.
C. Yes, but this will exceed the maximum 75% L3 link utilization of the circuit.
D. No, the available bandwidth of this link will be exceeded.
Answer: A