How can you automate the promotion of the server using …

Your role of Network Administrator at ABC.com includes the management of the Active Directory Domain
Services (AD DS) domain named ABC.com. The network includes servers that run Windows Server 2008 R2
Service Pack 1 (SP1) and Windows Server 2012. You plan to create a Windows Server 2012 Read Only
Domain Controller in the ABC.com domain. You open Active Directory Users and Computers and select the
Pre-create a read-only domain controller account option. You go through the Welcome to the Active Directory
Domain Services Installation Wizard and specify the settings to create an account named ABC-RODC1. You
use the Export Settings option to export the settings to a file named ABC-RODC1.txt. You plan to use this text
file to automate the installation of the Read Only Domain Controller.
You install a Window Server 2012 Server.
How can you automate the promotion of the server using the settings in the ABC-RODC1.txt file?

A.
By running the Install-ADDSDomainController PowerShell cmdlet.

B.
By running the Install-WindowsFeature PowerShell cmdlet.

C.
By running the DCPromo command.

D.
By using the Add Roles Wizard in Server Manager.

Explanation:
https://technet.microsoft.com/en-us/library/dd378860(v=ws.10).aspx