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What does "availability zone" mean in programming?
availability zone is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
An isolated location within an AWS region, used to deploy redundant resources for high availability. Each region contains multiple availability zones connected by low-latency links.
Example
"Deploy the database in two availability zones so the service stays up if one zone fails."
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