To delete the resource group TestRG, you must first address any impediments to deleting

its constituent resources. VNET1 has a Delete lock, which prevents its deletion; this lock

must be removed. Vault1 is a Recovery Services vault likely protecting VM1. A Recovery

Services vault cannot be deleted if it contains backup items. Therefore, you must stop the

backup for VM1 and delete the backup data from Vault1. Option B covers both these

necessary prerequisite actions.

A: Modifying the lock type (unless to 'None' or removed) is insufficient; the lock must be

removed.

C: Turning off VM1 does not resolve the backup dependency with Vault1, which prevents

Vault1's deletion.

D: Turning off VM1 is not the primary blocker, and this option fails to address the resource

lock on VNET1.

Resource Locks: Microsoft Learn. (2023). Lock resources to prevent unexpected changes.

"Before you can delete a locked resource, you must first remove the lock."

Direct URL: https://learn.microsoft.com/en-us/azure/azure-resourcemanager/management/lock-resources?tabs=json#delete

Deleting Recovery Services Vault: Microsoft Learn. (2023). Delete an Azure Backup

Recovery Services vault. "You can't delete a Recovery Services vault if there are any

dependencies, such as backup items or recovery points... To delete a vault with

dependencies: ... In the item's dashboard, select Stop backup. In the Stop Backup page,

select Delete Backup Data from the dropdown menu."

Direct URL: https://learn.microsoft.com/en-us/azure/backup/backup-azure-deletevault?tabs=portal#delete-a-recovery-services-vault-with-dependencies

Deleting Resource Groups: Microsoft Learn. (2023). Azure Resource Manager resource

group and resource deletion. "When you delete a resource group, Resource Manager

determines the order to delete resources... It waits for dependencies to be finished before

deleting a dependent resource... If you have a lock on a resource group or a resource, you

must remove the lock before you can delete the resource group or resource."

Direct URL: https://learn.microsoft.com/en-us/azure/azure-resourcemanager/management/delete-resource-group?tabs=azure-powershell#how-resources-are-

deleted