单项选择题
A.a direct-attached storage （DAS） device
B.a multipath serial-attached SCSI drive with a witness disk
C.a multipath Fibre Channel logical unit number （LUN） with a witness disk
D.a multipath iSCSI logical unit number （LUN） with Cluster Shared Volumes （CSVs）
多项选择题 Your network includes Windows Server 2008 R2 Hyper-V servers. You are configuring the servers in a failover cluster that will host highly available virtual machines （HAVMs）. You plan to manage the servers in the cluster by using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2. You need to design a storage solution for the cluster that allows you to migrate virtual machines （VMs） into and out of the cluster by using SAN migration. Which two actions should you include in your design？（）
单项选择题 You have a Windows Server 2008 R2 Hyper-V failover cluster. You manage the virtual environment by using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2. You need to find out whether the failover cluster is properly configured to support highly available virtual machines （VMs）. Which PowerShell cmdlet should you run？（）
多项选择题 Your network includes the servers shown in the following table. You manage your existing virtual environment by using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2. You are designing a highly available Hyper-V solution. You need to minimize the downtime of virtual machines （VMs） during maintenance periods. What are two possible ways to achieve this goal？（）