单项选择题 All client computers in your company run Windows 7 Enterprise. Users run Windows XP Mode guest virtual machines (VMs) on their computers. Each client computer runs two guest VMs. Each guest VM requires network connectivity to the other guest VM on the host computer, but must not have network connectivity to the host computer operating system or to the Internet. You need to configure each guest VM to meet the requirements. What should you do?（）

单项选择题 All client computers in your company run Windows 7 Enterprise. You are planning to deploy a custom application that runs only on Windows XP to all users. You install Windows XP Mode on each host computer and install the application in the Windows XP guest virtual machine s (VM s ). You verify that the application runs in the guest VM s . An a pplication shortcut does not appear on the Windows 7 host computers . You need to ensure that the application can be launched directly from the Windows 7 host computers . What should you do in the guest VM s ? （）

单项选择题 All client computers in your company run Windows 7 Enterprise. Each client computer runs one guest virtual machine (VM) in Windows Virtual PC . A user reports that a supported USB device connected to his client computer does not appear in the guest VM. The USB device functions correctly on the client computer. You need to ensure that the USB device can be installed in the guest VM. What should you do？（）