Your network contains Microsoft System Center Virtual Machine Manager and 10 Hyper-V hosts. You plan to convert all of the domain controllers to virtual machines （VMs）.
You need to recommend a recovery solution for the domain controllers. The solution must meet the following requirements：
- Prevent inconsistencies in the Active Directory database.
- Provide for the recovery of accidentally deleted Active Directory objects. - Provide for recovery if an administrator incorrectly modifies system settings.
What should you include in the recommendation？（）

Your company’s network environment includes the hypervisors described in the following table.
You manage the Microsoft Hyper-V Server 2008 server by using Microsoft System Center Virtual Machine Manager （SCVMM） 2008. You need to be able to manage all the hypervisors by using VMM.

Which two actions should you perform？（）