HOTSPOT
You have a server named DHCP1 that runs Windows Server 2012 R2. DHCP1 does not have access to the Internet.
All roles are removed completely from DHCP
You mount a Windows Server 2012 R2 installation image to the C:Mount folder.
You need to install the DHCP Server role on DHCP1 by using Server Manager.
Which folder should you specify as the alternate path for the source files? To answer, select the appropriate folder in the answer area.
Answer: 
Explanation:
WinSxS, the side-by-side component store enables administrators to activate any of the features included with Windows Server 2012 without having to supply an installation medium.
References:
http://blogs.technet.com/b/askpfeplat/archive/2013/02/24/how-to-reduce-the-size-of-the-winsxs-directory-andfree-up-disk-space-on-windows-server-2012-using-features-on-demand.aspx
Exam Ref 70-410: Installing and configuring Windows Server 2012, Chapter 1: Installing and configuring servers, Objective 1.1: Install servers, p. 10