AWS Certified Solutions Architect – ProfessionalContinuously Improve Existing SolutionsEasy
A global online learning platform serves video content to millions of users worldwide. The current architecture stores video files in an Amazon S3 bucket, and users access them directly. Customers in geographically distant regions report high latency and buffering during video playback, especially during peak hours. The company wants to improve the user experience by reducing latency and increasing content delivery speed globally. Which AWS service should a Solutions Architect recommend to achieve this MOST cost-effectively and efficiently?
- ADistribute video content globally using Amazon CloudFront with S3 as the origin.
- BReplicate the S3 bucket to multiple regions using S3 Cross-Region Replication.
- CIncrease the S3 bucket's throughput by enabling S3 Transfer Acceleration.
- DMigrate all video content to Amazon Elastic File System (EFS) and use AWS Direct Connect for faster access.
Show answer & explanationAnswer & explanation
Correct answer: A. Distribute video content globally using Amazon CloudFront with S3 as the origin.
Amazon CloudFront is a global content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency and high transfer speeds. By caching content at edge locations closer to users, it significantly improves the user experience for static and streaming content.
Why the other options are wrong
- B. S3 Cross-Region Replication creates copies of objects in different regions, which can improve availability and disaster recovery, but users would still be accessing S3 directly from a single regional endpoint, not from edge locations optimized for content delivery.
- C. S3 Transfer Acceleration speeds up uploads to S3 buckets over long distances, but it does not improve download speeds for end-users accessing content from the S3 bucket directly.
- D. EFS is a file storage service for EC2 instances, not designed for global content distribution to millions of internet users. Direct Connect is for private connectivity between on-premises and AWS, not for public internet users.
Amazon CloudFront
A fast content delivery network (CDN) service that securely delivers data, video, applications, and APIs globally with low latency.
- Caches content at edge locations worldwide.
- Reduces latency and improves transfer speeds.
- Integrates with AWS services like S3, EC2, Lambda@Edge.
- Supports HTTP/HTTPS and streaming protocols.
Memory trick: CloudFront is the 'Express Lane' for your content, reaching everyone, everywhere, fast.