Q10 — AWS SAA-C03 Ch.17

Question 10 of 89 | ← Chapter 17

Q1310. A company allows users to upload and store photos through its website. The website has users from all around the world. All images that users upload are stored in a centralized Amazon S3 bucket. The company wants to increase the speed in which its entire user base can upload photos through the website. What should a solutions architect recommend to meet these requirements?

Correct Answer: D. Configure S3 Transfer Acceleration on the S3 bucket. Use the S3 Accelerate endpoint to upload files.

Explanation

To optimize global photo upload speeds for users worldwide, the best solution is:D. Configure S3 Transfer Acceleration on the S3 bucket. Use the S3 Accelerate endpoint to upload files.Why Option D is Correct:S3 Transfer AccelerationDesigned specifically to speed up uploads/downloads for geographically distributed users by leveraging AWS's globally distributed edge locations (similar to CloudFront but optimized for large data transfers). Uses optimized network paths (AWS backbone) between edge locations and S3 buckets, reducing latency and improving throughput compared to direct uploads.Requires enabling Transfer Acceleration on the S3 bucket and updating the upload endpoint to the accelerated URL (e.g., bucketname.s3-accelerate.amazonaws.com).Performance BenefitsUsers in distant regions (e.g., Asia uploading to a US-based bucket) see significant speed improvements (often 50-70% faster) due to reduced network hops.Ideal for large files (photos/videos) and high-concurrency uploads (e.g., thousands of users simultaneously uploading).Cost-EffectivenessPriced based on data transfer volume (e.g.,0.04?0.08 per GB for accelerated transfers), which is often justified by the performance gains for user-generated content.No need for additional services (e.g., CloudFront distributions) unless caching is also required.Why Other Options Are Incorrect:A. CloudFront + S3 StandardCloudFront improves download speeds by caching content at edge locations, but it does not accelerate uploads to S3. Uploads still go directly to the S3 bucket, which may suffer from latency for global users.B. CloudFront with Custom Origin SettingsSimilar to Option A, CloudFront is not optimized for upload acceleration. Configuring origin settings (e.g., TTLs) won't address the core issue of upload latency.C. S3 Transfer Acceleration + Standard EndpointEnabling Transfer Acceleration is correct, but using the standard S3 endpoint (e.g., bucketname.s3.amazonaws.com) bypasses the acceleration benefits. The accelerated endpoint (Option D) is required.Implementation Steps for Option D:Enable Transfer AccelerationIn the S3 console, navigate to the bucket Properties Transfer Acceleration Enable. Note: Acceleration is supported in all regions, but buckets in US Standard (us-east-1) or EU (Ireland, eu- west-1) often see the best performance.Update Upload EndpointsModify the website's upload logic to use the accelerated endpoint (e.g., replace s3.amazonaws.com with s3-accelerate.amazonaws.com in the URL).Example:plaintextStandard endpoint: https://my-bucket.s3.amazonaws.com/photos/ Accelerated endpoint: https://my-bucket.s3-accelerate.amazonaws.com/photos/ Test PerformanceUse tools like curl or AWS CLI to measure upload speeds from different regions:bash# Test accelerated upload (replace with your bucket and file) aws s3 cp local-file.jpg s3://my-bucket/photos/ --endpoint-url https://s3-accelerate.amazonaws.com Compare with standard uploads to validate improvements.When to Consider Alternatives:If downloads also need acceleration: Use CloudFront + S3 (Option A) for caching frequently accessed content at edge locations.For very small files: Transfer Acceleration may not justify the cost (minimum efficiency gains for <1 MB files).Conclusion:Option D is the most direct and effective solution for accelerating global photo uploads to S3, leveraging AWS's optimized network infrastructure to minimize latency.