Cloudfront Quiz
A website runs on EC2 Instances behind an ELB Application Load Balancer. The instances run in an Auto Scaling Group across multiple Availability Zones and deliver several large files that are stored on a shared Amazon EFS file system. The company needs to avoid serving the files from EC2 Instances every time a user requests these digital assets.
What should the company do to improve the user experience of the web site?
A. Movethe digital assets to Amazon Glacier.
B. Cache static content using CloudFront.
C. Resizethe images so that they are smaller.
D. Usereserved EC2 Instances.
B. Cache static content using CloudFront.
AWS Documentation mentions the following on the benefits of using CloudFront:
Amazon CloudFront is a web service that speeds up distribution of your static and dynamic web content, such as .html, .css, .js, and image files to your users. CloudFront delivers your content through a worldwide network of data centers called edge locations. When a user requests content that you’re serving with CloudFront, the user is routed to the edge location that provides the lowest latency (time delay), so that content is delivered with the best possible performance. If the content is already in the edge location with the lowest latency, CloudFront delivers it immediately.
For more information on AWS Cloudfront, please visit the following URL:
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/Introduction.html
Glacier is not used for frequent retrievals. So Option A is not a good solution. Option C & D scenarios will also not help in this situation.
