AWS Certified Cloud Practitioner — Question 437

A company has a set of ecommerce applications. The applications need to be able to send messages to each other.

Which AWS service meets this requirement?

Answer options

• A. AWS Auto Scaling
• B. Elastic Load Balancing
• C. Amazon Simple Queue Service (Amazon SQS)
• D. Amazon Kinesis Data Streams

Correct answer: C

Explanation

Amazon Simple Queue Service (Amazon SQS) is a fully managed message queuing service designed to enable decoupled application components to send and receive messages. AWS Auto Scaling and Elastic Load Balancing focus on resource scaling and traffic distribution rather than message passing. Amazon Kinesis Data Streams is optimized for real-time streaming data ingestion rather than general application-to-application messaging.