HOTSPOT
You have a server named Server1 that runs Windows Server 2016. Server1 has the Web Application Proxy role service installed.
You need to publish Microsoft Exchange Server 2013 services through the Web Application Proxy. The solution must use preauthentication whenever possible.
How should you configure the preauthentication method for each service? To answer, select the appropriate options in the answer area.
Answer: 
Explanation:
https://technet.microsoft.com/en-us/library/dn528827(v=ws.11).aspx