You have two Hyper-V hosts named Host1 and Host2 that run Windows Server 2012 R2. Host1 hosts
a virtual machine named VM1 that is replicated to Host2. VM1 hosts an internal web application.
You need to test the failover of VM1 to Host2. The solution must ensure that clients continue to
connect to VM1 on Host1.
Which cmdlet should you run?

A.
Start-VMFailover

B.
Export-VM

C.
Move-VM

D.
Test-VMReplicationConnection

E.
Compare-VM

Explanation:
Start-VMFailover -AsTest
Creates a test virtual machine using the chosen recovery point. You can use a test virtual machine
to validate a Replica virtual machine. To stop a test failover, use the Stop-VMFailover cmdlet.
The Start-VMFailover cmdlet can be used for the following tasks:
 Fail over a Replica virtual machine to a chosen recovery point.
 Start a planned failover on a primary virtual machine.
 Create a test virtual machine on a Replica virtual machine. Start-VMFailover
https://technet.microsoft.com/en-us/library/jj136051(v=wps.630).aspx