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-VmFile cmdlet.
What command should you run? To answer, select the appropriate options in the answer area.
Answer: 
There’s a typo here. get-vMintegrationservice. (Missing M)
Also I tried the second command in my v-lab, and it still requires a VM Name (-VM VirtualMachine).
correction to my comment: There is a missing M, and the command works as long as it is all in one line:
get-vm | get-vmintegrationservice -name “guest service interface” | where Enabled -eq $true
The given answer is correct.
From Microsoft: “The guest service allows the Hyper-V administrator to copy files to a running virtual machine without using a network connection”
https://technet.microsoft.com/en-us/library/dn798297(v=ws.11).aspx#BKMK_guest
Guest Services is part of the Integration Services found in the VM’s settings. Guest services is not enabled by default.