AWS Certified Solutions Architect – Professional — Question 98

For AWS CloudFormation, which stack state refuses UpdateStack calls?

Answer options

• A. UPDATE_ROLLBACK_FAILED
• B. UPDATE_ROLLBACK_COMPLETE
• C. UPDATE_COMPLETE
• D. CREATE_COMPLETE

Correct answer: A

Explanation

The correct answer is A, UPDATE_ROLLBACK_FAILED, because this state indicates a failure during the rollback process, preventing further updates. The other states (B, C, D) indicate that the stack is either in a stable state or has successfully completed actions, allowing for updates.