A software development team has 5 developers, and you are helping them to configure AWS CodeCommit repositories. They prefer using their existing SSH keys to access CodeCommit to pull or push code. However, two developers told you that they were NOT able to operate on CodeCommit repositories from their own Linux machines successfully. How would you troubleshoot this issue? (Select TWO.)

Answer options:

A.Check if the IAM user has activated MFA.B.In the IAM Security Credential tab, check if the user’s private SSH key has been uploaded.
C.Check if the IAM user has a proper policy to access CodeCommit resource.
D.If GIT is used, check if the IAM users are able to access AWS CodeCommit using their AWS credentials.
E.Check whether the public SSH key has been uploaded to the IAM Security Credential tab.

Correct Answer – C, E
There are several methods to access CodeCommit: HTTPS, SSH and AWS access keys. Refer to
https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_ssh-keys.html?icmpid=docs_iam_console#git-credentials-code-commit
on how to configure credentials to access AWS CodeCommit.
Option A is incorrect: Because MFA is not mandatory to operate on CodeCommit repositories.
Option B is incorrect: Because the user’s public SSH key should be uploaded.
Option C is CORRECT: Because an appropriate IAM policy should be attached to the IAM user, such as AWSCodeCommitFullAccess.
Option D is incorrect: Because the Git Credential Manager is only compatible with CodeCommit if IAM users configure Git credentials.
Option E is CORRECT: Refer to the explanations in Option
B.