单项选择题
A.Install the Microsoft Loopback Adapter.
B.Create a new Virtual Network Switch.
C.Enable Internet Connection Sharing （ICS）.
D.Set the Connection to None for the network interface card.
单项选择题 You have a server that runs Windows Server 2008. The server has the Windows Server virtualization role service installed. You need to merge a differencing disk and a parent disk. What should you do？（）
单项选择题 You have a server that runs Windows Server 2008. The server has the Windows Server virtualization role service installed and has one virtual machine. The virtual machine runs Windows Server 2008. You plan to install a new application on the virtual machine. You need to ensure that you can restore the virtual machine to its original state in the event the application installation fails. What should you do？（）
单项选择题 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？（）