AWS Certified SysOps Administrator – AssociateCost and Performance OptimizationMedium
A global e-commerce company hosts its primary web application on Amazon EC2 instances in the `us-east-1` region. They are experiencing high latency for users in Europe and Asia. The company wants to improve the user experience for these global customers by routing their requests to the nearest optimal AWS endpoint, without replicating the entire application stack to multiple regions. Which AWS service should they use?
- AAWS Global Accelerator
- BAWS Direct Connect
- CAmazon CloudFront
- DVPC Peering
Show answer & explanationAnswer & explanation
Correct answer: A. AWS Global Accelerator
AWS Global Accelerator improves the availability and performance of applications by routing user traffic through the AWS global network infrastructure to the optimal AWS endpoint. It uses static Anycast IP addresses, providing a fixed entry point that directs traffic to the nearest AWS edge location and then over the AWS backbone network, significantly reducing latency for global users without requiring full application replication.
Why the other options are wrong
- B. AWS Direct Connect provides a dedicated network connection from on-premises to AWS, not for optimizing global user access to a public web application.
- C. Amazon CloudFront is a Content Delivery Network (CDN) that caches content at edge locations, primarily for static or infrequently changing content, not dynamic application requests requiring interaction with the origin.
- D. VPC Peering connects two VPCs privately, typically within the same or different regions, for internal communication, not for optimizing external global user access.
AWS Global Accelerator
A networking service that improves the availability and performance of your applications for global users by using the AWS global network infrastructure.
- Uses static Anycast IP addresses as fixed entry points.
- Routes traffic to the optimal AWS endpoint over the AWS backbone network.
- Reduces latency and improves availability for dynamic application traffic.
Memory trick: Global Accelerator guides traffic fast and true, like a digital GPS.