You have a server that runs Windows Server 2008. The server has the Windows Server virtualization
role service installed. You create a new virtual machine and perform an installation of Windows
Server 2008 on the virtual machine. You configure the virtual machine to use the physical network
card of the host server. You notice that you are unable to access network resources from the virtual
machine. You need to ensure that the virtual host can connect to the physical network. What should
you do?

A.
On the host server, install the MS Loopback adapter.

B.
On the host server, enable the Multipath I/O feature.

C.
On the virtual machine, install the MS Loopback adapter.

D.
On the virtual machine, install Windows Server virtualization Guest Integration
Components.

Explanation:
To ensure that the virtual host can connect to the physical network, you need to install Windows
Server virtualization Guest Integration Components on the virtual machine. The network adapter in

the VM ported from Virtual Server to Windows Server is no longer recognized. Workaround is to add
a legacy network adapter to the VM. In WSv, the network adapter seen by the guest OS is not an
emulated device (DEC/Intel 21140 Ethernet adapter. It is an entirely new, high performance, purely
synthetic device available as part of the Windows Server virtualization Integration Components call
Microsoft VMBus Network Adapter Reference: Archive for the ‘Virtual Server/PC/WSv/Hyper-V’
Category / Windows Server 2008 Common FAQ (condensed)
http://www.leedesmond.com/weblog/index.php?cat=6&paged=3