AWS Certified Cloud Practitioner — Question 110

Which AWS service helps developers use loose coupling and reliable messaging between microservices?

Answer options

• A. Elastic Load Balancing
• B. Amazon Simple Notification Service (Amazon SNS)
• C. Amazon CloudFront
• D. Amazon Simple Queue Service (Amazon SQS)

Correct answer: D

Explanation

The correct answer is D, Amazon Simple Queue Service (Amazon SQS), as it allows for asynchronous communication between microservices, promoting loose coupling. Options A and C do not provide messaging capabilities, while option B, Amazon Simple Notification Service (Amazon SNS), is designed for pub/sub messaging rather than queue-based messaging.