An enterprise cloud architect is designing multi-region disaster recovery for Azure Virtual Machines. The requirement is to replicate virtual machine disks asynchronously across regions without keeping secondary VMs running constantly. Which Azure service feature should be utilized?
Trap 1: Azure Backup Vault with geo-redundant storage (GRS)
Azure Backup provides point-in-time backup retention rather than continuous VM workload replication and failover orchestration.
Trap 2: Azure ExpressRoute Global Reach
ExpressRoute Global Reach connects on-premises sites via Microsoft's core network, not for VM disk replication.
Trap 3: Azure Traffic Manager with priority routing
Traffic Manager is a DNS-based traffic load balancer, not a disk replication mechanism.
- A
Azure Backup Vault with geo-redundant storage (GRS)
Why wrong: Azure Backup provides point-in-time backup retention rather than continuous VM workload replication and failover orchestration.
- B
Azure ExpressRoute Global Reach
Why wrong: ExpressRoute Global Reach connects on-premises sites via Microsoft's core network, not for VM disk replication.
- C
Azure Site Recovery (ASR)
Azure Site Recovery replicates VMs to another region for disaster recovery failover without running active secondary compute instances.
- D
Azure Traffic Manager with priority routing
Why wrong: Traffic Manager is a DNS-based traffic load balancer, not a disk replication mechanism.