AWS Certified Solutions Architect - Professional SAP-C02 — Topic 1 Question 100

Question

A company is running an application in the AWS Cloud. Recent application metrics show inconsistent response times and a significant increase in error rates. Calls to third-party services are causing the delays. Currently, the application calls third-party services synchronously by directly invoking an AWS Lambda function. A solutions architect needs to decouple the third-party service calls and ensure that all the calls are eventually completed. Which solution will meet these requirements?

Accepted Answer

Correct answer: A. The correct answer is A. Option A: Use an Amazon Simple Queue Service (Amazon SQS) queue to store events and invoke the Lambda function. 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. This option decouples the components so they scale independently and absorb load spikes.

AWS Certified Solutions Architect - Professional SAP-C02 — Question 100