AWS Certified SysOps Administrator – Associate — Question 362

A global company wants to allow anyone in the world to upload videos from a mobile phone. The company's mobile app uploads the videos across the public internet to an Amazon S3 bucket in the us-east-1 Region for further processing.

Videos that users upload from locations that are distant from us-east-1 have slower upload speeds than videos that users upload from close to us-east-1. In many cases, the slow uploads cause users from the distant locations to cancel their uploads.

Which solution will improve the upload speeds for the users from distant locations?

Answer options

• A. Enable S3 Transfer Acceleration on the S3 bucket. Change the mobile app to use the S3 Transfer Acceleration endpoint for uploads.
• B. Create an S3 access point for the S3 bucket in several AWS Regions across the world. Change the mobile app to use the S3 access point endpoint for uploads.
• D. Use S3 Select on the S3 bucket. Change the mobile app to use the S3 Select global endpoint for uploads. D. Create new public Network Load Balancers (NLBs) in several AWS Regions across the world. Specify the S3 bucket as the target of the NLBs. Change the mobile app to use the closest NLB for uploads.

Correct answer: A

Explanation

Amazon S3 Transfer Acceleration utilizes AWS CloudFront's globally distributed edge locations to route data over the optimized AWS private network, significantly reducing latency and increasing upload speeds for geographically distant users. S3 Access Points and S3 Select do not optimize network transit paths for uploads, and Network Load Balancers cannot directly use an S3 bucket as a target. Therefore, enabling S3 Transfer Acceleration is the most effective and native solution to resolve the slow upload issues.