Worked example
A video platform streams the same popular files to millions of viewers, and origin S3 data-transfer bandwidth is saturating. Which change reduces origin load while improving playback performance?
- AMove the bucket to One Zone-IA storage
- BEnable S3 Transfer Acceleration on the bucket
- CServe the videos through Amazon CloudFrontCorrect
- DAdd more read replicas to the origin
Why C
CloudFront caches popular files at edge locations, so repeated views are served from the edge, cutting origin fetches and improving latency. Transfer Acceleration speeds uploads, not viewer downloads, and storage class or replicas do not offload viewer reads.
Our blueprint tag — not a source
SAA-C03 · Domain 3 of 4 · Design High-Performing Architectures
We wrote this question and filed it under that domain. The domain name and its position in the outline come from the SAA-C03 exam guide (PDF, opens d1.awsstatic.com in a new tab).