You have an Azure subscription. You plan to deploy a virtual machine named VM1 to the East US Azure region and use Azure Site Recovery between availability zones. You need to configure the disks on VM

Question

Explanation

This question tests knowledge of Azure Site Recovery (ASR) zone-to-zone replication requirements for virtual machines, specifically around disk types and network configuration needed to maximize availability and preserve private IP addresses during failover.

Approach. For disk configuration, you must use Managed Disks (specifically Premium SSD or Standard SSD) because Azure Site Recovery for zone-to-zone replication requires managed disks - unmanaged disks are not supported. To maximize availability, Premium SSD managed disks are preferred as they support the highest performance tiers and are required for zone-redundant storage replication. For virtual network configuration, to maintain the same private IP address during failover and failback, the target virtual network in the secondary availability zone must use the same IP address space and subnet configuration as the source, and you must configure a static private IP address on VM1's NIC - ASR will then attempt to retain that same IP in the failover target subnet, preserving connectivity without requiring DNS or routing changes.

Concept tested. Azure Site Recovery (ASR) zone-to-zone replication requirements: managed disk support, IP address retention during failover via static private IP and matched subnet address spaces across availability zones.

Reference. https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-how-to-enable-zone-to-zone-disaster-recovery

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