AWS Service for Global Website Latency Reduction
Short answer
B Amazon CloudFront uses edge locations to cache content and deliver it to users with minimum latency.
Question
Key Takeaways
The question tests knowledge of Content Delivery Networks (CDNs) versus routing or load balancing, with the common trap being confusion between DNS-based global routing and actual content caching for latency reduction.
Amazon CloudFront is the optimal AWS service to reduce latency for a global audience by caching content at edge locations. This page explains why CloudFront outperforms Route 53 and ELB for static/dynamic web delivery.
Common mistake: Many users choose Amazon Route 53 because it offers global routing, but they fail to realize that Route 53 only directs traffic; it does not cache content or physically bring data closer to the user to reduce latency.
Expert Analysis
Why the Answer Is Correct
Amazon CloudFront is a Content Delivery Network (CDN) that integrates with AWS origin servers like EC2. By distributing content to a network of edge locations globally, CloudFront serves cached assets from the location nearest to the user, which significantly minimizes network latency and improves performance for a global audience.
Why the Other Options Are Wrong
Amazon Route 53 is a scalable DNS web service; while it can route users to different regions using latency-based routing policies, it does not cache content, so the request still travels back to the origin. Elastic Load Balancing distributes incoming traffic across multiple targets within a single region or VPC, which does not solve global latency issues. AWS Lambda is a compute service for running code without servers and is not a dedicated solution for delivering website content to end-users.
Community Comment Notes
The community consensus strongly supports CloudFront, noting its role as a CDN that caches content at edge locations. One commenter clarified that while Route 53 handles routing, CloudFront is specifically designed to reduce latency by serving content from the nearest point of presence. Another comment emphasized that CloudFront efficiently delivers both static and dynamic content to users worldwide.
Exam Strategy
When a question mentions 'global audience' and 'minimum latency' for web content, immediately consider CloudFront. Distinguish between services that route traffic (Route 53) and those that deliver/cache content (CloudFront).
Frequently Asked Questions
Why isn't Route 53 used to reduce latency?
Can CloudFront work with EC2?
Community Votes
100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 3 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 3
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e59311f 👍 1 Answered BAmazon CloudFront: It’s a content delivery network (CDN) service that distributes content globally through a network of edge locations. CloudFront caches and delivers static and dynamic content (including HTML, images, videos, and APIs) from the nearest edge location to the user, reducing latency significantly. By using CloudFront, the company can serve web content efficiently to users worldwide, improving their experience.
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Mohanram 👍 1Why not Amazon Route 53 which does the same to avoid network latency?
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ShaiTay 👍 1 Answered BB. Amazon CloudFront
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