AWS Cloud TutorialLesson 28Free preview

AWS Availability Zones

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Summary

Availability Zone (AZ) is one or more data centers that are physically separate but located within one Region. AZ is interconnected by low latency high-speed networks so it's suitable for building a failure-resistant architecture. By spreading the workload to several AZs, the service remains running even though one AZ has problems.

Key points

AZ is a cluster of physically separate data centers within a single region
AZ in one region connects low latency networks
Spread the workload to a minimum of two AZ for endurance
The database service is available in multi-AZ mode

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