A development team adds a new S3 bucket named DOC-EXAMPLE-BUCKET to hold large user uploads from around the world. After going live, uploads from some regions are noticeably slower than the team's existing S3 buckets. What should the SysOps admin do to improve upload performance for the new bucket?
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Correct answer: Enable Amazon S3 Transfer Acceleration on DOC-EXAMPLE-BUCKET and confirm developers are calling the DOC-EXAMPLE-BUCKET.s3-accelerate.amazonaws.com endpoint..
Why this is the answer
S3 Transfer Acceleration uses Amazon CloudFront's globally distributed edge locations to accelerate uploads to S3 buckets. Data is routed to the nearest edge location, then transferred over an optimized network path to the S3 bucket, significantly reducing latency for users far from the bucket's region. The key is to enable it on the bucket and ensure applications use the s3-accelerate endpoint. Provisioning an ElastiCache for Redis cluster is for caching data, not accelerating S3 uploads. Adding the bucket to a CloudFront distribution is primarily for accelerating content delivery (downloads), not uploads, unless specifically configured for uploads via CloudFront's POST/PUT methods, which is not the primary function of Transfer Acceleration. While S3 multipart upload can improve performance for large objects by parallelizing uploads, it doesn't inherently address latency due to geographical distance like Transfer Acceleration does. Using region-specific endpoints without Transfer Acceleration will still be subject to network latency from distant locations.
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