What can AWS edge locations be used for? (Select TWO.)

What can AWS edge locations be used for? (Select TWO.)
A . Hosting applications
B . Delivering content closer to users
C . Running NoSQL database caching services
D . Reducing traffic on the server by caching responses
E . Sending notification messages to end users

Answer: B,D

Explanation:

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.