AWS DevOps Engineer Professional DOP-C01 – Question440

Which status represents a failure state in AWS CloudFormation?

A. <code>UPDATE_COMPLETE_CLEANUP_IN_PROGRESS</code>
B. <code>DELETE_COMPLETE_WITH_ARTIFACTS</code>
C. <code>ROLLBACK_IN_PROGRESS</code>
D. <code>ROLLBACK_FAILED</code>

Correct Answer: D

Explanation:

Explanation:
ROLLBACK_IN_PROGRESS does not mean CloudFormation failed it could mean I failed to specify a working solution.
ROLLBACK_FAILED means CloudFormation failed to carry out a valid operation rolling back changes it attempted to introduce but could not complete.
Reference:
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using…