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AZ-104 Practice Question 50: Site Recovery Test Failover

Microsoft Azure Administrator Associate (AZ-104) · Test 5 · question 10 of 10

Monitoring & Backuphard

Azure Site Recovery replicates twelve production VMs from West Europe to North Europe, and replication is healthy. An annual audit requires evidence that the application actually starts and serves traffic in the secondary region.

The production VMs must keep serving users throughout, replication must not be interrupted, and the IP addresses and network components reserved for a real failover must stay free. What should you do?

Select one answer
Show answer and explanation

Answer:

  • B. Run a test failover into a non-production virtual network in North Europe, verify the application, then run Cleanup test failover

A test failover is the drill mechanism, and the documented procedure matches every constraint. You pick a recovery point and then "in Azure virtual network, select the target network in which to place Azure VMs created after failover. Select a non-production network if possible, and not the network that was created when you enabled replication", Microsoft's stated reason being "so that IP addresses and networking components remain available in production networks". The source VMs keep running and replicating throughout, and afterwards you "select Cleanup test failover" and "select Testing is complete to delete VMs created during the test failover", recording observations for the auditor as you go.

Option A moves production. A planned failover actually shifts the workload to the secondary region and then requires a failback, a real outage window and real risk, for a drill.

Option C tests the wrong thing and damages the arrangement it is meant to prove. Disabling replication loses the recovery points, and restoring from Azure Backup demonstrates backup recovery, not that Site Recovery can fail the application over.

Option D is the most disruptive option of the four. An unplanned failover is for a real disaster, committing it discards the other recovery points, and reprotecting means re-replicating in the reverse direction, none of which the audit asked for.

Reference: Run a disaster recovery drill for Azure VMs with Site Recovery

Practice Test 5 ›

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