多项选择题 You host several virtual machines on a Windows Server 2008 R2 Hyper-V failover cluster. You are deploying a highly available virtual machine （HAVM） that supports live migration. You need to install the operating system in the appropriate location. What are two possible locations that will allow you to achieve this goal？（）

单项选择题 Your company has a Microsoft Hyper-V Server 2008 R2 environment. You manage the environment by using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2. You attempt to migrate child partitions through a firewall by using network migration. The migration fails. You need to ensure that you can successfully complete the migration. Which firewall port should you open？（）

单项选择题 You use Hyper-V Server 2008 R2 and failover clustering to host several virtual machines （VMs）. You plan to perform a Volume Shadow Copy （VSS） backup of a Cluster Shared Volume （CSV）. You need to ensure that resources can continue to use the CSV during the VSS backup. What should you do？（）