单项选择题 You configure a Windows Server 2008 R2 Hyper-V server with several virtual machines （VMs）. A software vendor releases a software update for an application that runs on only one of the VMs. You need to plan a strategy that enables you to install and test the update without interrupting application availability and without corrupting data. What should you do first？（）

单项选择题 Your company plans to replace the current virtualization solution by using multiple Hyper-V hosts that run Windows Server 2008 R2 Service Pack 1 （SP1）. You are evaluating the power consumption technologies available in Hyper-V. You need to identify which technology will reduce the power consumption of the Hyper-V hosts. Which technology should you identify？（）

单项选择题 Your network environment includes two Windows Server 2008 R2 Hyper-V servers and one VMware ESX 3.5 host server. You are designing a Microsoft System Center Virtual Machine Manager （SCVMM） 2008 R2 implementation to manage your network environment. SCVMM must be able to perform management tasks that require file transfer operations between your VMware server and your Windows servers. You need to configure the ESX host server to ensure that file transfer operations are encrypted， and follow security best practices. What should you do？（）