单项选择题 You manage your virtual environment by using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2. You monitor the environment by using Microsoft System Center Operations Manager 2007 R2. You have three Windows Server 2008 R2 Hyper-V servers in a failover cluster. You need to ensure that all virtual machines （VMs） are distributed automatically across the host servers， and that the VMs will automatically fail over to the most appropriate host server. What should you do？（）

单项选择题 You are configuring your Microsoft System Center Virtual Machine Manager （VMM） 2008 R2  environment. A VMware ESX 3.5 host server named Host1 is added to the existing VMware Infrastructure 3 （VI3）environment that you manage by using VMM. You need to add Host1 to your VMM environment. What should you do？（）

单项选择题 You are configuring a virtual machine （VM） that is running on a Windows Server 2008 R2 host server. The primary virtual disk is connected to IDE Controller 0. You need to add a virtual disk to the VM without shutting down the VM. What should you do？（）