Question

A media company hosts an educational video platform on an Application Load Balancer backed by an Auto Scaling group of EC2 instances in the us-east-1 Region. Users worldwide report slow initial load times and buffering, especially in Asia and Europe. The videos are large static MP4 files stored on the instances, and the origin is being overwhelmed by repeated downloads of the same files. Which solution BEST improves global performance while reducing load on the origin?

Accepted Answer

Create an Amazon CloudFront distribution with the ALB as the origin, and cache the video files at edge locations closest to users.

Answer

Deploy additional Auto Scaling groups with ALBs in Asia-Pacific and European Regions and use Route 53 latency-based routing.

Answer

Increase the maximum size of the Auto Scaling group and switch to larger EC2 instance types to handle more concurrent downloads.

Answer

Enable ALB sticky sessions so repeat viewers are routed to the same instance that already served the file.