AWS Certified Solutions Architect - Associate SAA-C03 — Topic 1 Question 491

Question

A solutions architect is designing an asynchronous application to process credit card data validation requests for a bank. The application must be secure and be able to process each request at least once. Which solution will meet these requirements MOST cost-effectively?

Accepted Answer

Correct answer: A. The correct answer is A. Option A: Use AWS Lambda event source mapping. Set Amazon Simple Queue Service (Amazon SQS) standard queues as the event source. Use AWS Key Management Service (SSE-KMS) for encryption. Add the kms:Decrypt permission for the La... 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. AWS KMS manages encryption keys and integrates with most AWS services for encryption at rest. This option delivers the requirement at the lowest cost.

AWS Certified Solutions Architect - Associate SAA-C03 — Question 491