Your network contains an Active Directory domain named contoso.com.
You need to install and configure the Web Application Proxy role service.
What should you do?
A.
Install the Active Directory Federation Services server role and the Remote Access server
role on different servers.
B.
Install the Active Directory Federation Services server role and the Remote Access server
role on the same server.
C.
Install the Web Server (IIS) server role and the Application Server server role on the
same server.
D.
Install the Web Server (IIS) server role and the Application Server server role on different
servers.
Explanation:
Web Application Proxy is a new Remote Access role service in Windows Server® 2012 R2.
Why on difrent server?
Because the RAS is co-located with the WAP and it’s not a good idea for your FS server to be in your DMZ, so the RAS and FS have to be on different servers.
https://technet.microsoft.com/en-us/library/dn383662.aspx
Thanks for clarifying
A