Your network contains an Active Directory forest. The forest contains two domains named contoso.com and corp.contoso.com. The forest contains four domain controllers. The domain controllers are configured as shown in the following table.

All domain controllers are DNS servers. In the corp.contoso.com domain, you plan to deploy a new domain controller named DC5.
You need to identify which domain controller must be online to ensure that DC5 can be promoted successfully to a domain controller.
Which domain controller should you identify?（）

You have a Hyper-V host named Server1 that runs Windows Server 2012 R2. Server1 hosts 50 virtual machines that run Windows Server 2012 R2.
Your company uses smart cards for authentication.
You need to ensure that you can use smart card authentication when you connect to the virtual machine by using Virtual Machine Connection.
What should you configure?（）