AWS:

Ondemand , scalable.
Building blocks to get what you want for your IT Infrasturcture. Rather building , operating and maintaining infrastructure on your own.

Low Cost / Elastic / Flexible / Secure
Up & Running in very short time. Scale up and down.
Only the services you need.

Core Infrastructure Services

Region
 - Traffic transfer from region over region is using public internet
- Geographic area with 2 or more AZ
- Completley separate from one over the other.

AZ
- colletction of data centers within each region
- islolated from other AZ
   protects them from failures on other AZ
  Handle requests in case of failure
- connected by a low latency link
- Best Practice - provision resource across multiple AZ

Edge Locations
- Host CDN
 - websites/ streaming
- request routed to the neareset edge locations
- faster content delivery

AWS Services
Compute
 - EC2
 - ELB
 - Auto Scaling

DB - RDS
Netorkwing - VPC/ Route 53
Storage - S3 / EBS /Glacier
Admin - IAM /CloudWatch
Analytics - REdshift
Deployment - Cloud Formation