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Regions & Availability Zones

β–ͺ Cloud providers have physical data centers

β–ͺ Data centers all over the world

β–ͺ Region = physical location, where data centers are clustered

β–ͺ Each group of logical data centers is called an Availability Zone

  • Availability Zones = one or more discrete data centers

24 Regions and 77 availability zones

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An Availability Zone (AZ) is one or more discrete data centers with redundant power, networking, and connectivity in an AWS Region.

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