SAP-C02 Question 262
Select 3Your company is designing a global application that will serve users across multiple continents. To ensure low latency and high availability, the architecture must distribute traffic efficiently while leveraging AWS infrastructure. Which combination of AWS services and features would best meet these requirements?
- A
Amazon CloudFront with edge locations for caching content closer to users
- B
Route 53 with latency-based routing to direct users to the nearest AWS Region
- C
AWS Global Accelerator to route traffic dynamically using the AWS global network
- D
Amazon Elastic Load Balancer (ELB) configured to distribute traffic across multiple AWS Regions
- E
Amazon VPC peering to interconnect VPCs across regions for global traffic distribution
Show answer and explanation
Correct answers: A, B, C
Explanation
To design a global application with low latency and high availability, you can leverage Amazon CloudFront for caching static content at edge locations, Route 53 with latency-based routing for directing users to the nearest Region, and AWS Global Accelerator for dynamic traffic routing using the AWS global network. These services ensure efficient traffic distribution and performance optimization across multiple continents. Options like ELB and VPC peering are not suitable for global traffic distribution, as they are either region-restricted or focused on network interconnectivity rather than user-facing traffic optimization.
- A. Correct.
Amazon CloudFront uses edge locations to cache content globally, which reduces latency for end users by serving cached content from the closest location. This is an effective way to improve performance for global applications.
- B. Correct.
Route 53 with latency-based routing directs user traffic to the AWS Region with the lowest latency, ensuring that users are served by the most optimal region. This is well-suited for global applications that require efficient traffic distribution.
- C. Correct.
AWS Global Accelerator uses the AWS global network to improve the performance and availability of your application by routing traffic to the best endpoint based on health and geography. It also provides static IP addresses for traffic routing, which enhances reliability.
- D. Incorrect.
Amazon Elastic Load Balancer (ELB) operates within a single Region and cannot distribute traffic across multiple AWS Regions. While it can balance traffic within a Region, it is not designed for global traffic distribution.
- E. Incorrect.
Amazon VPC peering allows private connectivity between VPCs, even across Regions, but it is not designed for distributing global traffic or improving latency for end users. It primarily focuses on network-level connectivity between VPCs.