Question

Difficulty: MediumRecovery Services Vaults and Backup Vaults

An administrator is configuring backups for resources in a multi-region Azure environment. The resources are deployed as shown in the following table:

SubscriptionResource GroupResource NameResource TypeAzure Region
Sub-Core-Prodrg-compute-eastvm-prod-eastVirtual machineEast US
Sub-Core-Prodrg-compute-westvm-prod-westVirtual machineWest US
Sub-Core-Prodrg-storage-westsa-data-westStorage account (blobs)West US
Sub-Mgmt-Backuprg-backups-eastrsv-backup-eastRecovery Services VaultEast US
Sub-Mgmt-Backuprg-backups-westbv-backup-westBackup VaultWest US

Which backup or restore configuration can be successfully implemented for these resources?

  1. Back up vm-prod-east to rsv-backup-east.Answer
  2. B
    Back up vm-prod-west to rsv-backup-east.
  3. C
    Back up the blob containers in sa-data-west to bv-backup-west by relying on the administrator's Owner role at the subscription level, without assigning roles to the Backup Vault's managed identity.
  4. D
    Restore vm-prod-east using the 'Create new' restore option to overwrite the existing virtual machine disks while preserving its private IP address.

Answer

Back up vm-prod-east to rsv-backup-east.
The configuration to back up the virtual machine in the East US region to the Recovery Services Vault in the East US region is valid because Azure Backup supports cross-subscription virtual machine backups as long as the source virtual machine and the target vault reside in the same Azure region.

Step-by-Step Solution

1
Verify regional alignment requirements for Azure Virtual Machine backups.
Virtual machines must reside in the same region as the Recovery Services Vault to which they are backed up.
Azure Backup does not support cross-region backup configuration for virtual machines using Recovery Services Vaults.
2
Check cross-subscription support for virtual machine backup configuration.
Azure Backup allows backing up virtual machines to a vault in a different subscription within the same tenant.
This allows for centralized backup management across subscriptions.
3
Evaluate the vm-prod-east to rsv-backup-east backup configuration.
Both the virtual machine and the Recovery Services Vault are located in the East US region, making the configuration valid despite being in different subscriptions.
The regional constraint is satisfied and cross-subscription backup is supported.

Key Concept

Recovery Services Vaults require virtual machines to be in the same region to configure backups, but support cross-subscription configurations under the same tenant.
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