Your network contains an Active Directory domain named contoso.com. The network contains 500 client computers that run Windows 8. All of the client computers connect to the Internet by using a web proxy. You deploy a server named Server1 that runs Windows Server 2012 R2. Server1 has the DNS Server role installed. You configure all of the client computers to use Server1 as their primary DNS server. You need to prevent Server1 from attempting to resolve Internet host names for the client computers.
What should you do on Server1?
A . Create a primary zone named “root”.
B . Create a primary zone named "GlobalNames".
C . Create a forwarder that points to 169.254.0.1.
D . Create a primary zone named “.”.
Answer: D
Explanation: When you add a “.” zone to DNS server 1, it acts as it is the root of the internet, which of course it is not. However, because server 1 acts as if is the root of the internet, queries will go no further than server 1. Goal achieved