CloudFront

Question 1

What is an Edge Location? (CDN)

Answer 1

The location where content will be cached and is separate from to an AWS Region / AZ.
Over 50 at the moment.
* Can be both read and write.
* objects are cached by the TTL (you set this TTL)
* You can clear cached objects, but you will be charged.

Question 2

What is a Distribution? (CloudFront)

Answer 2

This is the name that is given to the CDN which consists of a collection of edge locations.

Question 3

What is Origin? (Cloudfront)

Answer 3

This is the origin of all files that the CDN will distribute, it does not have to be in AWS, you can have your own Original Servers.  
Examples: 
* S3 Bucket
* EC2 Instance
* ELB (Elastic Load Balancer) 
* Route 53

Question 4

What are the types of Cloudfront distributions?

Answer 4

1) Web Distribution - Used for websites

2) RTMP - Used for Media Streaming.

Question 5

What are the three types of HTTP method in configuring CloudFront?

Answer 5

1) Get, Head. (cached by default)
2) Get, Head, Options
3) Get, Head, Options, Put, Post, Patch, Delete.

Question 6

Can you restrict access to the Cloudfront content?

Answer 6

Yes. You restrict viewer access, viewers must use CloudFront signed URLs or signed cookies to access your content.

Question 7

Geo Restrictions AWS - Cloudfront.

Answer 7

You are able to enable geo-restrictions, in AWS, however, you cannot have both a whitelist and a blacklist. It is one or the other.

Question 8

What is Snowball?

Answer 8

It is a replacement to AWS Import / Export Service.

• secure transport.
• 80TB storage
• 256 AES encryption
• import to S3
• Export to S3

Question 9

Snowball Edge ?

Answer 9

It is a snowball with compute functionality.

* AWS DC in a box.

Question 10

Snow Mobile

Answer 10

This is a container on a truck, designed for massive amounts of data migration.
* Peta and Exabyte sized storage.