Q75 — AWS SAA-C03 Ch.14

Question 75 of 100 | ← Chapter 14

Q1075. A company hosts its ecommerce application in the AWS Cloud.The application uses a multi-Region active- active approach and many microservices. The company needs a solution to redirect traffic if resources in an AWS Region become unavailable. The company wants to ensure that the failover Region is ready to handle traffic in case of afailover.Which solution provides application resiliency with the LEAST operational overhead?

• A. Use the Amazon Route 53 Application Recovery Controller multi-Region recovery capability. ✓
• B. Use Amazon Route 53 health checks to monitor the multi-Region endpoints to redirect traffic. Ensure that the failover Region is ready to handle traffic by scheduling occasional resource shutdowns in the primary Region by using Amazon EventBridge Scheduler.
• C. Use AWS Fault Injection Service to reroute the traffic to another Region if resources in a Region become unavailable.
• D. Deploy Amazon API Gateway HTTP APIs in each Region. Use an Amazon CloudFront distribution. Use Lambda@Edge to query Amazon Route 53 for the Region to forward requests to based on the lowest latency.

Correct Answer: A. Use the Amazon Route 53 Application Recovery Controller multi-Region recovery capability.

Explanation

The solution that provides application resiliency with the least operational overhead is:A. Use the Amazon Route 53 Application Recovery Controller multi-Region recovery capability.Explanation:- Amazon Route 53 Application Recovery Controller: This service provides built-in capabilities for managing application recovery across multiple AWS Regions. It automates the routing of traffic to a healthy Region when a failure is detected, minimizing the need for manual intervention and reducing operational overhead. It also ensures that the failover Region is ready to handle traffic.Other Options:- B. Use Amazon Route 53 health checks to monitor the multi-Region endpoints to redirect traffic. Ensure that the failover Region is ready to handle traffic by scheduling occasional resource shutdowns in the primary Region by using Amazon EventBridge Scheduler: This approach requires more manual management and operational overhead to ensure that the failover Region is consistently ready, making it less ideal.- C. Use AWS Fault Injection Service to reroute the traffic to another Region if resources in a Region become unavailable: While this service can simulate failures for testing resilience, it does not directly manage traffic redirection and would require additional setup for real-time failover.- D. Deploy Amazon API Gateway HTTP APIs in each Region. Use an Amazon CloudFront distribution. Use Lambda@Edge to query Amazon Route 53 for the Region to forward requests to based on the lowest latency: This solution is complex and involves managing multiple services and configurations, resulting in higher operational overhead compared to the Route 53 Application Recovery Controller.Conclusion:Option A is the best choice as it provides effective application resiliency with minimal operational overhead, leveraging the capabilities of Route 53 Application Recovery Controller for automated traffic management.