AWS Certified Solutions Architect – Associate (SAA-C02) — Question 561

A company runs a latency-sensitive gaming service in the AWS Cloud. The gaming service runs on a fleet of Amazon EC2 instances behind an Application Load
Balancer (ALB). An Amazon DynamoDB table stores the gaming data. All the infrastructure is in a single AWS Region. The main user base is in that same Region.
A solutions architect needs to update the architecture to support a global expansion of the gaming service. The gaming service must operate with the least possible latency.
Which solution will meet these requirements?

Answer options

• A. Create an Amazon CloudFront distribution in front of the ALB
• B. Deploy an Amazon API Gateway regional API endpoint. Integrate the API endpoint with the ALB
• C. Create an accelerator in AWS Global Accelerator. Add a listener. Configure the endpoint to point to the ALB.
• D. Deploy the ALB and the fleet of EC2 instances to another Region. Use Amazon Route 53 with geolocation routing.

Correct answer: C

Explanation

AWS Global Accelerator improves gaming application performance by routing user traffic over the high-speed, congestion-free AWS global network directly to the ALB. This significantly reduces latency and jitter compared to routing over the public internet, which is crucial for latency-sensitive gaming services. Other options like Amazon CloudFront are optimized for caching web content rather than optimizing dynamic, low-latency raw TCP/UDP gaming traffic.