Accelerate S3 transfers from distant clients | AWS Certified CloudOps Engineer - Associate (SOA-C03) original practice question

1.3Standard

Users on several continents upload files of tens of gigabytes to one centralized S3 bucket.

The normal internet path cannot use the available bandwidth, and the team accepts additional transfer charges instead of replicating the bucket.

Which action is most appropriate?

Hint 1: Focus on the requirement

Choose the S3 feature that changes the long-distance transfer path rather than DNS answers or post-upload storage rules.

Hint 2: Key terms

Review the S3 transfer and storage-management concepts behind the decision.

S3 Transfer Acceleration: An S3 feature that uses CloudFront edge locations and an optimized path for long-distance transfers.
Edge location: A globally distributed AWS location that can provide a nearby entry point for network traffic.
Acceleration endpoint: The s3-accelerate endpoint used to access a bucket with Transfer Acceleration enabled.
Long-distance transfer: Data movement between a client and an AWS Region across a large geographic distance.

Detailed explanation

IncorrectCache upload requests with a CloudFront cache policy

CloudFront cache policies control cached delivery responses, not writes from clients into S3.

IncorrectUse S3 Lifecycle to move uploading objects to an infrequent-access class

Lifecycle manages stored objects after they exist and does not improve the network path during transfer.

CorrectEnable S3 Transfer Acceleration on the bucket and use its acceleration endpoint

The service uses CloudFront edge locations and an optimized path to improve long-distance transfers into a general purpose S3 bucket.

IncorrectUse Route 53 latency routing to replicate the same bucket across Regions

DNS answer selection does not accelerate the network path to a single bucket and does not satisfy the centralized-bucket requirement.

Compare the following points with the official documentation.

Amazon S3 Transfer Accelerationの公式説明と利用条件を確認する。

S3への書き込み転送の高速化と、CDN配信・DNSルーティング・ライフサイクル管理を区別できる。

Foundation review

Transfer Acceleration improves uploads into S3; CloudFront caching primarily improves delivery of responses.

The feature can improve the path to one general purpose bucket without requiring regional replicas.

Question IDAWS-SOA-169

EnvironmentAWS公式SOA-C03試験ガイドとAWS公式ドキュメントの確認

Last technical review2026-08-20

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