Exam AWS Certified DevOps Engineer - Professional DOP-C02 topic 1 question 127 discussion

yes C & D C. Issue a ContinueUpdateRollback command from the AWS CloudFormation console or the AWS CLI: This command allows CloudFormation to continue the rollback process from the point where it was paused. By using this command, CloudFormation will attempt to restore the resources to their previous state and delete any resources that were created during the update. D. Manually adjust the resources to match the expectations of the stack: This involves identifying and correcting the root cause of the update failure, which could involve changing the resource configuration or resolving any dependencies or inconsistencies in the stack.

D. "In most cases, you must fix the error that causes the update rollback to fail before you can continue to roll back your stack. In other cases, you can continue to roll back the update without any changes, for example when a stack operation times out." https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-continueupdaterollback.html

C and D are correct: < UPDATE_ROLLBACK_FAILED state> means we are left with ContinueUpdateRollback command A: irrelevant, AWSCloudFormationFullAccess IAM policy is used to access ACF, not to fix this B: AWS CloudFormation drift detection is to check if the stack has been updated unexpectedly, not to fix irrelevant E: The original template didnt work, so update the stack using it wont work

Agree with C and D

C and D are right

Yes it's C & D

(C) This command will try to roll back the stack to the previously working state after you have resolved the issues that caused the rollback failure. (D) Sometimes a stack update can fail because the current state of a resource differs from the state expected by AWS CloudFormation (e.g., a resource that AWS CloudFormation is trying to modify or delete is locked by another process). Manually resolving these issues, by stopping the conflicting process or by modifying the resource to match the expected state, will allow the stack update or rollback to proceed.

Yes it's C & D