AWS DevOps Engineer Professional Practice Test 2025 - Free DevOps Practice Questions and Certification Study Guide

Deploying an application revision in AWS CodeDeploy for Amazon ECS (Elastic Container Service) involves specific steps that ensure the deployment process is correctly configured. The complete solution stems from correctly setting up your ECS service to utilize CodeDeploy as its deployment controller, hence establishing the fundamental mechanism that CodeDeploy requires to manage deployments.

Creating an ECS service with the deployment controller set to CodeDeploy is critical because this step links the ECS service to CodeDeploy, allowing it to orchestrate the deployment of application revisions. By doing this, you enable features such as blue/green deployments, automatic rollbacks, and deployment tracking, which are integral to managing application updates effectively in a robust manner.

The other options, while relevant to AWS development and management, do not directly correlate with the necessary procedure to deploy an application revision using CodeDeploy for ECS. Deploying via ECS requires a proper service configuration that utilizes CodeDeploy; thus, establishing the link through this specific setup is essential for successful deployments.