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？（）

单项选择题 You create a virtual machine （VM） on a Windows Server 2008 R2 Hyper-V server. The VM has a single VHD file that is connected to an IDE controller. You need to add five new virtual disks to the VM. You must minimize the amount of virtual hardware. What should you do？（）

单项选择题 You are configuring a Windows Server 2008R2 Hyper-V failover cluster. You configure five iSCSI logical unit numbers （LUNs） on shared storage， and you present them to the first server. Each LUN appears twice in the Disk Management console. You need to ensure that each LUN appears only once in the Disk Management console. What should you do？（）