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Glossary · Cloud Computing

What is Availability Zone?

An isolated data centre location within a cloud region, with independent power, cooling and networking.

In more detail

Running across two or more zones lets an application survive the failure of one. Zones in a region are connected by fast private links.

Example

Web servers in Mumbai zones A and B behind one load balancer.

Learn it properlyRegions, Availability Zones and the Shared Responsibility Model10 min lesson · Cloud Computing

Related terms

ContainerA lightweight package containing an application and everything it needs to run, sharing the host operating system’s kernel.IaaS, PaaS and SaaSThe three cloud service models: rent infrastructure, use a managed platform for your code, or use complete software.IAM (Identity and Access Management)The cloud service that controls who can do which actions on which resources.KubernetesAn open-source system for running, scaling and updating containers across a cluster of machines.ServerlessA cloud model where the provider runs your code on demand and bills per request and run time, with no servers for you to manage.Shared Responsibility ModelThe split of security duties between a cloud provider (security of the cloud) and the customer (security in the cloud).