AWS Certified Cloud Practitioner — Question 682

A company is running an order processing system on Amazon EC2 instances. The company wants to migrate to an event-driven, microservices-based application.

Which combination of AWS services can the application use to meet these requirements? (Choose two.)

Answer options

• A. Amazon Simple Queue Service (Amazon SQS)
• B. AWS Lambda
• C. AWS Migration Hub
• D. AWS AppSync
• E. AWS Application Migration Service

Correct answer: A, B

Explanation

AWS Lambda is a serverless compute service ideal for running microservices in response to events, while Amazon SQS provides a reliable, decoupled message queuing service to facilitate event-driven communication between those microservices. Other services like AWS Migration Hub and AWS Application Migration Service are migration tools rather than application architecture components, and AWS AppSync is a managed GraphQL service.