Re: AZ-204 topic 4 question 62

No, he is not. Read it again: AzureAppConfigurationClient is different from AddAzureAppConfiguration.

Re: AZ-204 topic 4 question 62

It looks like typo. AddAzureAppConfiguration is a method, not object.

Re: AZ-204 topic 4 question 62

DefaultAzureCredential is wrong because it tries different authentication methods.
https://yourazurecoach.com/2020/08/13/managed-identity-simplified-with-the-new-azure-net-sdks/