AWS Certified Solutions Architect – Professional (SAP-C02) — Question 179

A software-as-a-service (SaaS) provider exposes APIs through an Application Load Balancer (ALB). The ALB connects to an Amazon Elastic Kubernetes Service (Amazon EKS) cluster that is deployed in the us-east-1 Region. The exposed APIs contain usage of a few non-standard REST methods: LINK, UNLINK, LOCK, and UNLOCK.

Users outside the United States are reporting long and inconsistent response times for these APIs. A solutions architect needs to resolve this problem with a solution that minimizes operational overhead.

Which solution meets these requirements?

Answer options

• A. Add an Amazon CloudFront distribution. Configure the ALB as the origin.
• B. Add an Amazon API Gateway edge-optimized API endpoint to expose the APIs. Configure the ALB as the target.
• C. Add an accelerator in AWS Global Accelerator. Configure the ALB as the origin.
• D. Deploy the APIs to two additional AWS Regions: eu-west-1 and ap-southeast-2. Add latency-based routing records in Amazon Route 53.

Correct answer: C

Explanation

The correct answer is C, as AWS Global Accelerator improves the availability and performance of applications with users in multiple geographic locations by directing traffic to the optimal endpoint. Options A and B do not effectively address the latency issues for users outside the U.S. Option D involves more operational overhead due to the need to manage multiple deployments and routing records.