AWS Certified DevOps Engineer – Professional (DOP-C02) — Question 78

A DevOps engineer is architecting a continuous development strategy for a company’s software as a service (SaaS) web application running on AWS. For application and security reasons, users subscribing to this application are distributed across multiple Application Load Balancers (ALBs), each of which has a dedicated Auto Scaling group and fleet of Amazon EC2 instances. The application does not require a build stage, and when it is committed to AWS CodeCommit, the application must trigger a simultaneous deployment to all ALBs, Auto Scaling groups, and EC2 fleets.

Which architecture will meet these requirements with the LEAST amount of configuration?

Answer options

• A. Create a single AWS CodePipeline pipeline that deploys the application in parallel using unique AWS CodeDeploy applications and deployment groups created for each ALB-Auto Scaling group pair.
• B. Create a single AWS CodePipeline pipeline that deploys the application using a single AWS CodeDeploy application and single deployment group.
• C. Create a single AWS CodePipeline pipeline that deploys the application in parallel using a single AWS CodeDeploy application and unique deployment group for each ALB-Auto Scaling group pair.
• D. Create an AWS CodePipeline pipeline for each ALB-Auto Scaling group pair that deploys the application using an AWS CodeDeploy application and deployment group created for the same ALB-Auto Scaling group pair.

Correct answer: C

Explanation

Option C is correct because it allows for parallel deployment to each ALB-Auto Scaling group using a single AWS CodeDeploy application, which minimizes configuration complexity. Option A requires multiple AWS CodeDeploy applications and groups, increasing configuration. Option B does not allow for parallel deployment to multiple ALBs, which is necessary. Option D creates separate pipelines for each pair, leading to unnecessary duplication and complexity.