An **availability zone** in Azure is a physically separate location within an Azure region. Each zone has its own independent power, cooling, and networking to ensure high availability and redundancy. By distributing resources across multiple availability zones, Azure helps protect applications and data from datacenter failures, providing a higher level of reliability and availability. ![regions-availability-zones.png (872×353)](https://learn.microsoft.com/en-us/azure/reliability/media/regions-availability-zones.png) ## Resources [What are Azure availability zones? | Microsoft Learn](https://learn.microsoft.com/en-us/azure/reliability/availability-zones-overview?toc=%2Fazure%2Fvirtual-machines%2Ftoc.json&tabs=azure-cli)