A system architect is planning the deployment of a new web application in the East US region. The application must be protected against a localized physical datacenter failure (such as a power grid or cooling system outage) within that region, without the overhead of replicating data to a completely different geographical region. Which deployment strategy should the architect use to meet these requirements?
- Deploy the application virtual machines across multiple Availability Zones in the East US region.Answer
- BDeploy the application virtual machines in the paired West US region and configure cross-region replication.
- CDeploy the application virtual machines across Availability Zones that span both the East US and West US regions.
- DDeploy the application virtual machines in a single Resource Group located in East US to automatically inherit local high availability.
Answer
Deploy the application virtual machines across multiple Availability Zones in the East US region.
Deploying virtual machines across multiple Availability Zones in the East US region is the correct choice. Availability Zones are physically separate datacenters within a single Azure region. Each zone has its own independent power, cooling, and networking. By distributing the application virtual machines across these zones, the application is protected against localized datacenter failures (such as a power grid or cooling outage) within East US without needing the overhead of copying or running resources in another region.
Step-by-Step Solution
Key Concept
Azure Availability Zones provide physical isolation and redundancy within a single Azure region, protecting workloads from localized datacenter failures through independent power, cooling, and networking.