Your network contains three servers named Server1, Server2, and Server3 that have the Network
Policy Server (NPS) role service installed. On Server1, you configure a Remote RADIUS Server Group
that contains Server2 and Server3. On Server2 and Server3, you configure Server1 as a RADIUS
client. You configure Server2 and Server3 to authenticate remote users. You need to configure
Server1 to forward RADIUS authentication requests to Server2 and Server3. What should you create
on Server1?

A.
a network policy

B.
a remediation server group

C.
a connection request policy

D.
a health policy

Explanation:
http://technet.microsoft.com/en-us/library/cc754518.aspx