CloudFront

Question 1

What is CloudFront

Answer 1

A content delivery network (CDN) is a system of distributed servers that deliver webpages 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

How does CloudFront get content physically close to end users?

Answer 2

It utilizes AWS’s Edge Locations to cache content close to users.

Question 3

What is the Origin ?

Answer 3

The origin for where all files the CDN will distribute. Could be S3, EC2, ELB, or Route53

Question 4

What is a the Distribution?

Answer 4

The name given to the CDN which consists of a collection of Edge Locations

Question 5

How long are things cached?

Answer 5

For the life of the TTL (Total Time to Live)

Question 6

What is the default TTL?

Answer 6

86,400 seconds, or 24hrs, unless the minimum is configured higher

Question 7

What are the two types of CloudFront Distributions?

Answer 7

Web Distribution

RTMP

Question 8

Are Edge Locations Read Only?

Answer 8

No, you can place puts on them. Transfer Acceleration can be used to speed this up.