AWS - Regions and Availability Zone

 

Region

• It is a Geographic area or physical location.
• Every Region has a unique region Code like Mumbai has ap-south-1.
• Each Region has a minimum of 2

AZ.Availability Zone (AZ)

• It is a data center within a Region.
• AZs within a Region are connected to each other and they are within 100 km (most likely) of distance.
• Data flow between the AZs is encrypted.

Edge Location

• It is data centers that are near to the user's location.
• It provides the lowest latency
• Mostly these are in major cities of a Region/Country
• It is mainly used for Caching the data so that when a user request for a file then it should be transferred from the Cached server.
• CloudFront Service is an example of an Edge Location.

AWS Cloud Front Documentation