Your network contains one Active Directory domain named contoso.com. The forest functional level is Windows
Server 2012. All servers run Windows Server 2012 R2. All client computers run Windows 8.1.
The domain contains 10 domain controllers and a read-only domain controller (RODC) named RODC01. All
domain controllers and RODCs are hosted on Hyper-V host that runs Windows Server 2012 R2.
You need to identify which domain controller must be online when cloning a domain controller.
Which cmdlet should you use?

A.
Get-ADGroupMember

B.
Get-ADDomainControllerPasswordReplicationPolicy

C.
Get-ADDomainControllerPasswordReplicationPolicyUsage

D.
Get-ADDomain

E.
Get-ADOptionalFeature

Explanation:
A prerequisite to clone a domain controller is that an existing Windows Server 2012 DC that hosts the PDC
emulator role is online.
The output of the Get-ADDomain command includes a line indicating which domain controller acts as a PDC
emulator.
For example: PDCEmulator : Fabrikam-DC1.Fabrikam.com
Incorrect answers:
Not A: The Get-ADGroupMember cmdlet gets the members of an Active Directory group.
Members can be users, groups, and computers.
Not E: The Get-ADOptionalFeature cmdlet gets an optional feature or performs a search to retrieve multiple
optional features from an Active Directory.
Step-by-Step: Domain Controller Cloning
http://blogs.technet.com/b/canitpro/archive/2013/06/12/step-by-step-domain-controller- cloning.aspx
Get-ADDomain
https://technet.microsoft.com/en-us/library/ee617224.aspx