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？（）

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？（）

Your virtual environment includes Hyper-V host servers and VMware ESX Server hosts. You manage the environment by using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2. You need to enable non-administrative users to manage snapshots or checkpoints for virtual machines （VMs） that are hosted on either host system.
What should you do？（）

You create a virtual machine （VM） on a Windows Server 2008 R2 Hyper-V server. You plan to use this VM as the base image for new VMs. You need to ensure that you can import the base image multiple times on the original host server.
In the Import Virtual Machine Wizard，which settings should you configure during each import process？（）