HOTSPOT
Your network contains an Active Directory domain named contoso.com. The domain contains two member
servers named Server1 and Server2. All servers run Windows Server 2012 R2.
Server1 and Server2 have the Hyper-V server role installed. The servers are configured as shown in the
following table.
You add a third server named Server3 to the network. Server3 has Intel processors.
You need to move VM3 and VM6 to Server3. The solution must minimize downtime on the virtual machines.
Which method should you use to move each virtual machine?
To answer, select the appropriate method for each virtual machine in the answer area.
Hot Area:
Answer: 
Explanation:
VM3: export/import is the only option due to different processor manufacturers
VM6: Live migration can be used as both have Intel CPU’s
Live Storage Migration requires same processor manufacturers
Live migration requires same processor manufacturers
Incorrect:
Quick migration has downtime
Migrating Virtual Machines and Storage Overview
http://technet.microsoft.com/en-us/library/jj628158.aspx