ANS-C01 Question 388
Select 3You are tasked with designing a network architecture for a global e-commerce application hosted in AWS. The application requires low latency for end-users across multiple continents, high availability, and cost-effective traffic routing. Which combination of actions should you take to optimize the network for performance, reliability, and cost-effectiveness?
- A
Use Amazon CloudFront to cache static content at edge locations globally.
- B
Deploy the application in a single AWS Region with Auto Scaling for cost savings.
- C
Enable Amazon Route 53 latency-based routing to direct users to the closest AWS Region.
- D
Leverage AWS Global Accelerator to improve performance and provide redundancy for application endpoints.
- E
Use VPC Peering to connect all Regions to a central hub for low-latency traffic routing.
Show answer and explanation
Correct answers: A, C, D
Explanation
To optimize a global e-commerce application for performance, reliability, and cost-effectiveness, caching static content with Amazon CloudFront reduces latency for users worldwide and lowers origin server costs. Amazon Route 53 latency-based routing ensures users are directed to the nearest AWS Region for optimal performance. AWS Global Accelerator further improves global performance by optimizing traffic routing and providing redundancy. Together, these solutions meet the requirements for low latency, high availability, and cost-effectiveness.
- A. Correct.
Using Amazon CloudFront caches static content at global edge locations, reducing latency for end-users and offloading traffic from origin servers, which is both performance-enhancing and cost-effective.
- B. Incorrect.
Deploying the application in a single AWS Region does not meet the requirement for global low latency and high availability. While it may be cost-effective, it sacrifices critical performance and reliability requirements.
- C. Correct.
Amazon Route 53 latency-based routing ensures users are directed to the nearest AWS Region, reducing latency and improving performance.
- D. Correct.
AWS Global Accelerator enhances global application performance by routing traffic to the optimal endpoint and provides fault tolerance for application endpoints, aligning with performance and reliability goals.
- E. Incorrect.
VPC Peering is not designed for global low-latency traffic routing across multiple Regions; it is better suited for direct connections between VPCs. It does not help optimize global performance effectively.