SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is migrating a monolithic application to AWS and wants to adopt a microservices architecture. The application currently runs on a single server and uses a shared MySQL database. Which AWS service can help the company decouple the microservices and enable asynchronous communication?
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
✓
Amazon Simple Queue Service (SQS)
Amazon Simple Queue Service (SQS) is a message queue service that enables asynchronous communication between microservices, which is essential for decoupling components in a microservices architecture. Amazon API Gateway is used for creating RESTful APIs, not for asynchronous messaging. AWS Step Functions orchestrates workflows but does not provide a message queue for asynchronous communication. Elastic Load Balancing distributes incoming traffic across targets, not for decoupling services via messaging.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon API Gateway
Why it's wrong here
Amazon API Gateway is used for creating RESTful APIs, not for asynchronous messaging between microservices.
- ✗
AWS Step Functions
Why it's wrong here
AWS Step Functions is for orchestrating workflows, not for providing a message queue for asynchronous communication.
- ✗
Elastic Load Balancing
Why it's wrong here
Elastic Load Balancing distributes incoming traffic across targets, but does not decouple services via asynchronous messaging.
- ✓
Amazon Simple Queue Service (SQS)
Why this is correct
Amazon SQS is a message queue service that enables asynchronous communication, making it ideal for decoupling microservices.
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