An organization has private and public cloud resources. The organization has Windows Server 2012 R2 servers
that have the Hyper-V role installed. You have one four-node cluster of Hyper-V host servers.
You use System Center 2012 R2.
The virtual machines that run on the cluster must remain online when you install updates on the Hyper-V host
servers.
You need to install updates on the Hyper-V host servers.
What should you do?

A.
Configure Windows Server Update Services (WSUS) to provide updates to the virtual machines hosted on
the cluster.

B.
Add all the servers to a collection in System Center 2012 R2 Configuration Manager. Deploy updates to the
collection.

C.
Create orchestrated updates of Hyper-V host clusters by using System Center 2012 R2 Virtual Machine
Manager (VMM).

D.
Configure Windows Update on the Hyper-V host servers to download updates from Microsoft Update.

Explanation:
http://technet.microsoft.com/en-us/library/gg675084.aspx
http://technet.microsoft.com/en-us/library/gg675088.aspx
VMM rolls through the host cluster, remediating one cluster node at a time. If a cluster node
is compliant, VMM bypasses that node.