AWS Certified Solutions Architect – Associate (SAA-C02) — Question 582

A company wants to migrate its existing on-premises monolithic application to AWS. The company wants to keep as much of the front-end code and the backend code as possible. However, the company wants to break the application into smaller applications. A different team will manage each application. The company needs a highly scalable solution that minimizes operational overhead.
Which solution will meet these requirements?

Answer options

• A. Host the application on AWS Lambda. Integrate the application with Amazon API Gateway.
• B. Host the application with AWS Amplify. Connect the application to an Amazon API Gateway API that is integrated with AWS Lambda.
• C. Host the application on Amazon EC2 instances. Set up an Application Load Balancer with EC2 instances in an Auto Scaling group as targets.
• D. Host the application on Amazon Elastic Container Service (Amazon ECS). Set up an Application Load Balancer with Amazon ECS as the target.

Correct answer: B

Explanation

AWS Amplify provides a fully managed hosting service for the frontend code, while Amazon API Gateway and AWS Lambda allow the backend to be refactored into modular, serverless microservices that can be owned by separate teams. This serverless combination scales automatically and minimizes operational overhead by removing the need to manage underlying virtual machines or container infrastructure. Other options like EC2 or ECS require significantly more operational management and do not offer the same integrated frontend hosting advantages as AWS Amplify.