CloudFront CDN Overview

Question 1

A content delivery network (CDN) is…

Answer 1

…a system of distributed servers (network) that deliver web pages and other web content to a user based on the geographic locations of the user, the origin of the webpage and a content delivery server

Question 2

Edge location

Answer 2

location where content will be cached. separate to a region/AZ

Question 3

Origin

Answer 3

origin of all the files that the CDN will distribute. can either be an S3 bucket, an EC2 instance, an ELB or Route53

Question 4

Distribution

Answer 4

name given to the CDN which consists of a collection of edge locations

Question 5

With edge locations, when users make a request…

Answer 5

…request goes to edge location first. if desired object is not cached, the request goes to the origin and then pulled down/cached at the edge location

Question 6

CloudFront can be used to…

Answer 6

…deliver your entire website, including dynamic, static, streaming, and interactive content using a global network of edge locations.

Question 7

Requests for your content are…

Answer 7

…automatically routed to the nearest edge location, so content is delivered with the best possible performance

Question 8

T/F: CloudFront works with AWS as well as non-AWS servers

Answer 8

True

Question 9

Web Distribution

Answer 9

used for websites

Question 10

RTMP

Answer 10

used for media streaming

Question 11

T/F: Edge locations are read only.

Answer 11

False; they are not just read only, you can write to them too

Question 12

How long are objects cached at the edge location?

Answer 12

life of the TTL

Question 13

Will there be a charge if you clear cached objects?

Answer 13

Yes