SAA-C03 Question 324
Select 2Your company operates a global e-commerce platform with users accessing it from multiple regions worldwide. You have observed increased latency for users in geographically distant regions from your primary application hosted in a single AWS Region. Additionally, some users report degraded performance when connecting to the platform during peak traffic hours. Which AWS services should you use to improve both latency and application availability globally?
- A
Amazon CloudFront
- B
AWS Global Accelerator
- C
Amazon Elastic Load Balancer (ELB)
- D
Amazon Route 53
- E
AWS Direct Connect
Show answer and explanation
Correct answers: A, B
Explanation
To improve latency and application availability for users globally, Amazon CloudFront and AWS Global Accelerator are the appropriate services. CloudFront caches content at edge locations, reducing latency for delivering static and dynamic content. AWS Global Accelerator routes traffic through the AWS global network, optimizing performance and availability by directing users to the best endpoint. Together, these services address both latency and availability challenges for a global audience.
- A. Correct.
Amazon CloudFront is a content delivery network (CDN) service that caches content at edge locations, reducing latency by serving content closer to users. This is ideal for improving performance for global users accessing static and dynamic content.
- B. Correct.
AWS Global Accelerator improves the availability and performance of your application by routing traffic through the AWS global network, reducing latency and providing a consistent user experience. It also supports traffic failover to ensure high availability.
- C. Incorrect.
Amazon Elastic Load Balancer (ELB) distributes traffic within a particular AWS Region. While it helps with high availability and scaling within a region, it does not reduce latency for globally distributed users.
- D. Incorrect.
Amazon Route 53 is a DNS service that can route users to the nearest AWS Region using routing policies like geolocation. However, it does not cache content or accelerate traffic, so it doesn't directly reduce latency for global users.
- E. Incorrect.
AWS Direct Connect provides a dedicated network connection between your on-premises data center and AWS. It is unrelated to optimizing latency for global users accessing your application over the internet.