Which of the following is a possible reason that the developer’s department is still being reported as Engineering instead of Sales?

Explanations:

Authorization caching in the custom Lambda authorizer may be causing the function to return a cached response with the old department value (Engineering) instead of the updated value (Sales). If the authorizer does not invalidate its cache upon receiving a new access token, it will continue to use the previously cached result.

Authorization caching on the Amazon Cognito user pool would not directly affect the department attribute passed to the custom Lambda authorizer. The user pool manages user authentication but does not cache the values that the authorizer uses for authorization checks.

The IAM role for the custom Lambda authorizer does not need a Department tag to function correctly regarding the department value in the access token. IAM role tags are used for resource-based policies and do not influence how the authorizer processes token attributes.

Similar to option C, the IAM role for the Amazon Cognito user pool does not need a Department tag for the application to function correctly. Tags are not related to the actual attribute mapping and the authorization process.