AWS Interview DropBeginner TierConcept+10 XP on read
Your application needs to feel fast for users spread across multiple continents. What would you put in front of it, and why?
Core Summary
Amazon CloudFront is a CDN that terminates connections and caches content at edge locations close to the user, so most requests never travel back to the origin region at all. It helps static content the most, but modern CloudFront also improves dynamic requests through TCP/TLS termination at the edge and origin connection reuse.
Hints
Hint 1: CDN latency wins come from two different mechanisms: caching and connection termination
Hint 2: Cache-Control headers decide what CloudFront is even allowed to cache
Hint 3: Dynamic, uncacheable requests still benefit from edge TLS termination