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To guarantee that CloudFront edge locations serve the most recent version of your website after content updates, which approach should you implement?

hard📝 Application Q9 of 15
AWS - Cloud Computing Fundamentals
To guarantee that CloudFront edge locations serve the most recent version of your website after content updates, which approach should you implement?
ADisable caching entirely in the CloudFront distribution settings
BWait for the default TTL to expire before updates are visible
CInvalidate the cached objects in CloudFront after updating the origin content
DUse a different origin for each content update
Step-by-Step Solution
Solution:
  1. Step 1: Understand cache invalidation

    CloudFront caches content at edge locations based on TTL settings.
  2. Step 2: For immediate updates

    Invalidating cached objects forces CloudFront to fetch the latest content from the origin.
  3. Final Answer:

    Invalidate the cached objects in CloudFront after updating the origin content -> Option C
  4. Quick Check:

    Invalidation refreshes edge caches immediately [OK]
Quick Trick: Invalidate cache to serve fresh content immediately [OK]
Common Mistakes:
  • Relying on TTL expiry delays content freshness
  • Disabling caching reduces performance unnecessarily
  • Changing origins for updates is inefficient and complex

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