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Regions and Availability Zones
The AWS Cloud operates in 16 geographic Regions, with 44 Availability Zones around the world. Some of these are depicted in the following diagram:
For more details, visit the following website: https://aws.amazon.com/about-aws/global-infrastructure/.
A Region is a location in any part of the world, whereas Availability Zones (AZs) are separate data centers that are available in a specific region:
Each region is isolated from another region, and each Availability Zone is planned as an independent failure zone to support highly available resources, fault-tolerant resources, and scalable application architecture.