Your network contains an Active Directory domain named contoso.com. Contoso.com contains two servers named Server1 and Server2 that run Windows Server 2008 R2. DirectAccess is deployed on Server2. You need to configure Server1 as a network location server (NLS). Which Web Server (IIS) role service should you install on Server1?
A.
Request Filtering
B.
IIS Client Certificate Mapping Authentication
C.
URL Authorization
D.
IP and Domain Restrictions
Explanation:
see steps below :
If your DirectAccess server is acting as the network location server, you must install the Web Server (IIS) server role with the IP and Domain Restrictions role service.
source: http://technet.microsoft.com/en-us/library/ee649160%28WS.10%29.aspx