HOTSPOT
You have a Hyper-V host named Server1 that runs Windows Server 2012 R2.Server1 hosts
40 virtual machines that run Windows Server 2008 R2. The virtual machines connect to a
private virtual switch.
You have a file that you want to copy to all of the virtual machines.
You need to identify to which servers you can copy files by using the Copy-VmFilecmdlet.
What command should you run?
To answer, select the appropriate options in the answer area.
Answer: 
Explanation:
It should be: Get-VMIntegrationService
(so add the M ;))
https://technet.microsoft.com/en-us/library/hh848542.aspx
https://technet.microsoft.com/en-us/library/dn282278.aspx
its get vm and guest interfcae
source http://www.powershellmagazine.com/2013/12/16/using-copy-vmfile-cmdlet-in-windows-server-2012-r2-hyper-v/
Good call Aerone,
Get-VM | Get-VMIntegrationService -Name “Guest Service Interface” | Select VMName, Enabled