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Programming Fundamentals

Availability Zone

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AWS Availablity Zone

Each AWS region has one or more availability zone.
Each Availability Zone is a fully isolated partition of AWS infrastructure.
Each Availability Zone consists of one or more data centers.
They are designed for fault isolation.
AWS recommends replicating data and resources across availability zone for resiliency.

Resiliency is the ability of something to return to its original size and shape after being compressed or deformed.