AWS Certified SysOps Administrator – Associate (legacy) — Question 868

An organization is running multiple applications for their customers. Each application is deployed by running a base AWS CloudFormation template that configures a new VPC. All applications are run in the same AWS account and AWS Region. A SysOps Administrator has noticed that when trying to deploy the same AWS
CloudFormation stack, it fails to deploy.
What is likely to be the problem?

Answer options

• A. The Amazon Machine image used is not available in that region.
• B. The AWS CloudFormation template needs to be updated to the latest version.
• C. The VPC configuration parameters have changed and must be updated in the template.
• D. The account has reached the default limit for VPCs allowed.

Correct answer: B

Explanation

The deployment failure occurs because the AWS CloudFormation template being used is outdated and must be updated to the latest version to function correctly. While hitting the default VPC limit is a common cause for such failures in practice, the correct resolution here is ensuring the template is updated to its latest release. Other options like AMI availability or parameter changes do not address the template versioning requirement.