SAP-C02 Continuous Improvement for Existing Solutions Practice Question
A company runs a monolithic application on a single EC2 instance. The application is critical and must be highly available. The company wants to migrate to a containerized architecture on Amazon ECS with minimal downtime. Which approach should the company take?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use an Application Load Balancer with blue/green deployment using AWS CodeDeploy and ECS.
A blue/green deployment with ECS minimizes downtime by switching traffic gradually. Option A is wrong because migrating all at once risks downtime. Option B is wrong because launching a separate ECS cluster adds complexity. Option C is wrong because CodeStar is not a deployment strategy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Launch a new ECS cluster with the containerized application and use Route 53 weighted routing to shift traffic.
Why it's wrong here
This approach adds complexity and does not leverage ECS deployment features.
- ✗
Deploy the monolith as a single task in ECS and update the task definition with new container versions.
Why it's wrong here
This does not guarantee minimal downtime; rolling updates may cause brief interruptions.
- ✗
Use AWS CodeStar to automatically deploy the application to ECS with blue/green deployments.
Why it's wrong here
CodeStar is a project management tool, not a deployment strategy.
- ✓
Use an Application Load Balancer with blue/green deployment using AWS CodeDeploy and ECS.
Why this is correct
CodeDeploy with ECS supports blue/green deployments for minimal downtime.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SAP-C02 exam.