SAP-C02 Question 258
Select 3A company is migrating its e-commerce platform to AWS. They want to improve performance and scalability for their global customers while ensuring low latency and high availability. The application includes dynamic content served from an Amazon EC2 Auto Scaling group behind an Application Load Balancer (ALB), and static assets hosted on Amazon S3. Which combination of AWS services and configurations should you recommend to meet these requirements?
- A
Use Amazon CloudFront with the ALB and S3 as origins to cache both dynamic and static content at edge locations.
- B
Enable AWS Global Accelerator to route traffic to the nearest AWS Region hosting the ALB.
- C
Configure an S3 Transfer Acceleration endpoint to improve the upload and download speeds for static assets.
- D
Use Amazon RDS Multi-AZ to ensure high availability for the application database.
- E
Enable Amazon S3 Cross-Region Replication to replicate static assets to multiple regions for reduced latency.
Show answer and explanation
Correct answers: A, B, D
Explanation
To achieve low latency and high availability for a global audience, caching content at edge locations using Amazon CloudFront is essential. Additionally, AWS Global Accelerator enhances performance by routing traffic to the closest AWS Region hosting the application. Ensuring high availability for the application database with Amazon RDS Multi-AZ is critical to maintaining uptime. S3 Transfer Acceleration and Cross-Region Replication are not optimal solutions for reducing latency in this scenario, as they don't provide the global caching benefits of CloudFront.
- A. Correct.
Correct: Amazon CloudFront can cache both dynamic and static content at edge locations, improving performance and reducing latency for global users.
- B. Correct.
Correct: AWS Global Accelerator provides a static IP and routes traffic to the nearest AWS Region, improving performance and availability for global applications.
- C. Incorrect.
Incorrect: S3 Transfer Acceleration is designed to improve transfer speeds for uploads and downloads over long distances, but it doesn’t optimize performance for serving static assets to end users.
- D. Correct.
Correct: Amazon RDS Multi-AZ ensures high availability for the database, which is critical for maintaining uptime in a global e-commerce platform.
- E. Incorrect.
Incorrect: While S3 Cross-Region Replication can replicate static assets to multiple regions, serving these assets from replicated buckets is less efficient than using CloudFront, which provides global caching and edge delivery.