What type of redundancy do Azure Availability Zones provide?

Azure Availability Zones provide power, networking, and cooling fault domain isolation within an Azure region. Each Availability Zone is a physically separate datacenter with independent power, cooling, and networking. This design ensures that if one zone experiences a failure (e.g., a power outage), the other zones in the same region remain operational, providing high availability for applications and data. Region-level redundancy is achieved by deploying resources across multiple Azure regions. Data-level redundancy refers to data replication strategies, often within or across zones/regions. Global redundancy is a broader concept, typically involving deployment across geographically distant regions.