AWS Certified DevOps Engineer – Professional — Question 201

A development team is building a full-stack serverless web application. The serverless application will consist of a backend REST API and a front end that is built with a single-page application (SPA) framework.
The team wants to use a Git-based workflow to develop and deploy the application. The team has created an AWS CodeCommit repository to store the application code. The team wants to use multiple development branches to test new features. In addition, the team wants to ensure that code changes on the development branches are deployed to the different development environments. Code changes to the main branches must be released automatically to production.
The development deployments must be available as a subdomain of the main application website, which is hosted in an Amazon Route 53 public hosted zone.
What should a DevOps engineer do to meet these requirements?

Answer options

• A. Create an application in the AWS Amplify console, and connect the CodeCommit repository. Create a feature branch deployment for each of the environments. Connect the Route 53 domain to the application. Activate the automatic creation of subdomains.
• B. Create a single AWS CodePipeline pipeline that uses the CodeCommit repository as a source. Configure the pipeline so that it deploys to different environments based on the changed branch. Create an AWS Lambda function that creates a new subdomain based on the source branch name. Invoke the Lambda function in the deployment workflow.
• C. Create an application in AWS Elastic Beanstalk that uses the CodeCommit repository as a source. Configure Elastic Beanstalk so that it creates a new application environment based on the changed branch. Connect the Route 53 domain to the application. Activate the automatic creation of subdomains.
• D. Create multiple AWS CodePipeline pipelines that use the CodeCommit repository as a source. Configure each pipeline so that it deploys to a specific environment based on the configured branch. Configure an AWS CodeDeploy step in the pipeline to deploy the application components and to create the Route 53 public hosted zone.

Correct answer: A

Explanation

Option A is correct because AWS Amplify simplifies the deployment of serverless applications and allows for the creation of subdomains for feature branches seamlessly. The other options, while they provide deployment strategies, do not effectively manage subdomain creation as required or are more complex than necessary for this specific scenario.