AWS Certified SysOps Administrator – Associate (legacy) — Question 604

A company is planning to deploy multiple ecommerce websites across the eu-west-1, ap-east-1, and us-west-1 Regions. The websites consist of Amazon S3 buckets, Amazon EC2 instances, Amazon RDS databases, and Elastic Load Balancers.
Which method will accomplish the deployment with the LEAST amount of effort?

Answer options

• A. Configure deployment automation using AWS OpsWorks
• B. Configure S3 cross-Region replication
• C. Use AWS CloudFormation stack sets to deploy the application
• D. Use AWS Elastic Beanstalk to deploy the application

Correct answer: C

Explanation

AWS CloudFormation stack sets allow you to deploy, update, or delete stacks across multiple AWS accounts and Regions in a single operation, making it the most efficient solution for multi-Region infrastructure provisioning. AWS OpsWorks and AWS Elastic Beanstalk do not natively support multi-Region deployments with the same level of centralized coordination. S3 cross-Region replication only replicates object data and does not provision infrastructure like EC2, RDS, or Elastic Load Balancers.