Your network contains a server named Server1 that runs Windows Server 2008 R2. Server1 is
configured as a DNS server. You need to ensure that Server1 only resolves queries issued from client
computers in the same subnet as Server1. The solution must ensure that Server1 can resolve
Internet host names. What should you do on Server1?

A.
Configure Windows Firewall.

B.
Create a conditional forwarder.

C.
Modify the routing table.

D.
Create a trust anchor.