DRAG DROP
Your network contains an Active Directory forest named contoso.com. The forest contains a server
named Server1 that has two network adapters. You plan to configure Server1 as a DirectAccess
server. You need to assign the correct IP addresses to the external network card on the DirectAccess
server. What should you do?
To answer, drag the appropriate IP address to the correct network adapter in the answer area.
Answer: 
Explanation:
Two concurrent public IPs are required.
Ref:
http://technet.microsoft.com/en-us/library/ee382305(v=ws.10).aspx