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AWS Certified Solutions Architect – Associate (SAA-C03)Design Resilient ArchitecturesMedium

A global real estate company hosts its property listing website on AWS. The website experiences inconsistent user experience and high latency for users located far from the primary `us-east-1` region. They want to improve performance by routing user traffic to the nearest healthy application endpoint, regardless of where the application is hosted globally. Which AWS service should they use?

  1. AAmazon CloudFront
  2. BAmazon Route 53
  3. CAWS Transit Gateway
  4. DAWS Global Accelerator
Show answer & explanation

Correct answer: D. AWS Global Accelerator

AWS Global Accelerator improves the availability and performance of applications with global users. It uses the AWS global network infrastructure to route user traffic to the nearest healthy application endpoint, reducing latency and providing consistent performance, which is ideal for improving a global website's user experience.

Why the other options are wrong

  • A. Amazon CloudFront is a Content Delivery Network (CDN) primarily for caching static and dynamic content at edge locations, not for routing live application traffic to the nearest healthy application endpoint.
  • B. Amazon Route 53 is a DNS service; while it can route traffic, Global Accelerator offers more advanced routing and performance optimization over the AWS global network.
  • C. AWS Transit Gateway connects VPCs and on-premises networks, not for optimizing global user access to public web applications.

AWS Global Accelerator

A networking service that improves the availability and performance of your applications with global users. It directs user traffic to the nearest healthy application endpoint using the AWS global network infrastructure, providing consistent performance and faster failover.

  • Improves global application performance
  • Routes traffic to nearest healthy endpoint
  • Uses AWS global network
  • Provides static IP addresses
  • Faster failover

Memory trick: Global Accelerator 'accelerates' users to the best endpoint.

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