AWS Certified Solutions Architect - Associate SAA-C03 — Topic 1 Question 75

Question

A company wants to move a multi-tiered application from on premises to the AWS Cloud to improve the application's performance. The application consists of application tiers that communicate with each other by way of RESTful services. Transactions are dropped when one tier becomes overloaded. A solutions architect must design a solution that resolves these issues and modernizes the application. Which solution meets these requirements and is the MOST operationally efficient?

Accepted Answer

Correct answer: A. The correct answer is A. Option A: Use Amazon API Gateway and direct transactions to the AWS Lambda functions as the application layer. Use Amazon Simple Queue Service (Amazon SQS) as the communication layer between application services. AWS Lambda runs code without provisioning servers and scales automatically, which minimizes operational overhead. Amazon SQS is a fully managed message queue that decouples components and absorbs traffic spikes. Amazon API Gateway is a fully managed front door for creating and securing APIs at scale.

AWS Certified Solutions Architect - Associate SAA-C03 — Question 75