You need to ensure that the new server meets the security policy

Your company’s security policy states that all of the servers deployed to a branch office must not have the
graphical user interface (GUI) installed.
In a branch office, a support technician installs aserver with a GUI installation of Windows Server 2012 on a
new server, and then configures the server as a DHCP server.
You need to ensure that the new server meets the security policy. You want to achieve this goal by using the
minimum amount of Administrative effort.
What should you do?

A.
Reinstall Windows Server 2012on the server.

B.
From Windows PowerShell, run Uninstall-WindowsFeature Desktop-Experience.

C.
From Windows PowerShell, run Uninstall-WindowsFeature PowerShell-ISE.

D.
From Server Manager, uninstall the User Interfaces and Infrastructure feature.

Explanation:
A: Not least effort
B: Uninstalls desktop experience not the full GUI
C: Uninstalls the powershell ISE
D: Least effort and removes full GUI

http://www.howtogeek.com/111967/how-to-turn-the-gui-off-and-on-in-windows-server-2012/ http://technet.
microsoft.com/en-us/library/cc772567.aspx http://blogs.technet.com/b/server_core/archive/2012/05/09/
configuring-the-minimal-server- interface.aspx