Microsoft Azure Fundamentals (AZ-900)Describe Azure architecture and servicesHard
A company wants to implement a disaster recovery strategy for its critical applications hosted on Azure Virtual Machines. They need a solution that can replicate VMs to another Azure region and orchestrate failover and failback processes with minimal downtime. Which Azure service should they use?
- AAzure Backup
- BAzure Load Balancer
- CAzure Site Recovery
- DAzure Traffic Manager
Show answer & explanationAnswer & explanation
Correct answer: C. Azure Site Recovery
Azure Site Recovery (ASR) is a disaster recovery service that orchestrates replication, failover, and failback of virtual machines and physical servers between on-premises and Azure, or between Azure regions, to ensure business continuity with minimal downtime.
Why the other options are wrong
- A. Azure Backup is for data backup and restoration, not for orchestrating full VM replication and failover/failback for disaster recovery.
- B. Azure Load Balancer distributes incoming network traffic to healthy instances within a single region or VNet, not for cross-region disaster recovery.
- D. Azure Traffic Manager is a DNS-based traffic load balancer, used for distributing traffic across endpoints, not for VM replication and disaster recovery orchestration.
Azure Site Recovery (ASR)
An Azure service that enables disaster recovery by orchestrating replication, failover, and failback of workloads to Azure.
- Supports replication of Azure VMs, on-premises VMs (VMware, Hyper-V), and physical servers.
- Provides recovery plans for orchestrating failover.
- Ensures business continuity with minimal RTO (Recovery Time Objective) and RPO (Recovery Point Objective).
Memory trick: Site Recovery 'Saves' your site from disaster.