A CloudFront distribution is set up with an origin at example-bucket.s3.amazonaws.com. When a user requests a file, what happens first?

medium📝 service behavior Q4 of 15

AWS - Cloud Computing Fundamentals

AThe user is redirected to the S3 bucket URL

BCloudFront retrieves the file directly from the S3 bucket every time

CCloudFront sends the request to the AWS region hosting the bucket

DCloudFront checks the nearest edge location cache for the file

Step-by-Step Solution

Solution:

Step 1: Understand CloudFront caching behavior
CloudFront first checks its edge location cache near the user for the requested file.
Step 2: Explain fallback if cache miss
If the file is not cached, CloudFront fetches it from the origin (S3 bucket) and caches it for future requests.
Final Answer:
CloudFront checks the nearest edge location cache for the file -> Option D
Quick Check:
CloudFront cache checked first = True [OK]

Quick Trick: CloudFront tries edge cache before origin fetch [OK]

Common Mistakes:

MISTAKES

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