What are two requirements for successful vMotion migration? (Choose two.)
A.
CPUs with matching SpeedStep settings must exist on both the source and destination hosts.
B.
Virtul machines must not utilize hardware local to the host such as SCSI pass-through.
C.
Virtual machines must not have a CDROM connected via the vSphere client.
D.
Dedicated Gigabit Ethernet Networking must exist between the source and destination hosts.
Correct answer is B, C & D. All three are correct.
http://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.vcenterhost.doc%2FGUID-3B41119A-1276-404B-8BFB-A32409052449.html
vSphere vMotion Networking Requirements:
Configure each host with at least one vMotion network interface.
Because vMotion performance improves significantly with additional bandwidth, dedicate at minimum a physical 1 Gigabit Ethernet (GigE) NIC to vMotion.
As a best practice, provision at least one additional physical NIC as a failover NIC.
You cannot use migration with vMotion to migrate a virtual machine that uses a virtual device backed by a device that is not accessible on the destination host. For example, you cannot migrate a virtual machine with a CD drive backed by the physical CD drive on the source host. Disconnect these devices before you migrate the virtual machine.
Option C. says nothing about CDROM connected to CD drive on source host but via the vSphere client! so I’d say answer B & D