AWS Certified DevOps Engineer – Professional (DOP-C02) — Question 329

A company operates a globally deployed product out of multiple AWS Regions. The company's DevOps team needs to use Amazon API Gateway to deploy an API to support the product.

The API must be deployed redundantly. The deployment must provide independent availability from each company location. The deployment also must respond to a custom domain URL and must optimize performance for the API user requests.

Which solution will meet these requirements?

Answer options

• A. Deploy an API Gateway edge-optimized API endpoint in the us-east-1 Region. Create an API Gateway custom domain for the API. Create an Amazon Route 53 record set with a geoproximity routing policy for the API's custom domain. Increase the geographic bias to the maximum allowed value.
• B. Deploy an API Gateway regional API endpoint in the us-east-1 Region. Integrate the API Gateway API with a public Application Load Balancer (ALB). Create an AWS Global Accelerator standard accelerator. Associate the endpoint with the ALCreate an Amazon Route 53 alias record set that points the custom domain name to the DNS name that is assigned to the accelerator.
• C. Deploy an API Gateway regional API endpoint in every AWS Region where the company's product is deployed. Create an API Gateway custom domain in each Region for the deployed API Gateway API. Create an Amazon Route 53 record set that has a latency routing policy for every deployed API Gateway custom domain.
• D. Deploy an API Gateway edge-optimized API endpoint in the us-east-1 Region. Create an Amazon CloudFront distribution. Configure the CloudFront distribution with an alternate domain name. Specify the API Gateway Invoke URL as the origin domain. Create an Amazon Route 53 alias record set with a simple routing policy. Point the routing policy to the CloudFront distribution domain name.

Correct answer: C

Explanation

Deploying regional API Gateway endpoints in every active region ensures independent availability and high redundancy, preventing a single region failure from taking down the entire global API. Utilizing an Amazon Route 53 latency routing policy automatically directs user traffic to the closest regional endpoint, optimizing response times. Options A, B, and D all introduce a single point of failure by hosting the API Gateway endpoint exclusively in the us-east-1 Region.