AWS Certified Solutions Architect - Associate SAA-C03 — Topic 1 Question 752

Question

A company has a multi-tier payment processing application that is based on virtual machines (VMs). The communication between the tiers occurs asynchronously through a third-party middleware solution that guarantees exactly-once delivery. The company needs a solution that requires the least amount of infrastructure management. The solution must guarantee exactly-once delivery for application messaging. Which combination of actions will meet these requirements? (Choose two.)

Accepted Answer

Correct answer: A, D. The correct answer is A, D. Option A: Use AWS Lambda for the compute layers in the architecture. Option D: Use Amazon Simple Queue Service (Amazon SQS) FIFO queues as the messaging component between the compute layers. 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 - Associate SAA-C03 — Question 752