ANS-C01 Question 387
Select 2Your company runs a global e-commerce platform hosted on AWS, with end-users distributed across North America, Europe, and Asia. You are tasked with optimizing the platform's network for performance, reliability, and cost-effectiveness. The platform serves static content (images, videos) and dynamic content (personalized user data) using an Application Load Balancer (ALB) and EC2 instances in multiple AWS Regions. Which combination of actions should you take to achieve the stated goals?
- A
Use Amazon CloudFront to cache static content closer to end-users.
- B
Enable AWS Global Accelerator to improve the performance and availability of requests to the ALB.
- C
Increase the number of EC2 instances in each Region to improve performance.
- D
Configure S3 Transfer Acceleration for dynamic content delivery.
- E
Enable cross-region VPC peering to reduce latency between Regions.
Show answer and explanation
Correct answers: A, B
Explanation
To optimize AWS networks for performance, reliability, and cost-effectiveness, leveraging Amazon CloudFront ensures that static content is cached closer to end-users, reducing latency and minimizing costs. AWS Global Accelerator improves global application performance and reliability by routing traffic through the AWS global network. These solutions are specifically designed to address the network optimization requirements for a global application with distributed end-users.
- A. Correct.
Using Amazon CloudFront to cache static content closer to end-users improves performance and reduces costs by minimizing requests to the origin servers.
- B. Correct.
AWS Global Accelerator provides improved network performance and reliability by routing user traffic through the AWS global network backbone and directing it to the closest healthy endpoint.
- C. Incorrect.
Increasing the number of EC2 instances in each Region may improve local performance but does not address global performance or cost-effectiveness. It may also lead to higher costs.
- D. Incorrect.
S3 Transfer Acceleration is used to speed up uploads to S3 buckets from remote clients, but it is not relevant for dynamic content delivery in this use case.
- E. Incorrect.
Cross-region VPC peering is generally used for inter-region communication between resources but does not optimize global network performance for end-users or reduce costs significantly for this scenario.