AWS Certified SysOps Administrator – Associate — Question 35

A SysOps administrator is using AWS CloudFormation StackSets to create AWS resources in two AWS Regions in the same AWS account. A stack operation fails in one Region and returns the stack instance status of OUTDATED.
What is the cause of this failure?

Answer options

• A. The CloudFormation template changed on the local disk and has not been submitted to CloudFormation.
• B. The CloudFormation template is trying to create a global resource that is not unique.
• C. The stack has not yet been deployed to the Region.
• D. The SysOps administrator is using an old version of the CloudFormation API.

Correct answer: B

Explanation

The correct answer is B because the failure is due to an attempt to create a global resource that must be unique, which results in the OUTDATED status. Option A is incorrect because the local template changes would not affect the stack instance status unless deployed. Option C is wrong as the stack must be deployed to be in an OUTDATED state. Option D is not relevant since the version of the API does not directly cause an OUTDATED status in this context.