Your company has a single Active Directory forest that has six domains.All DNS servers in the forest run Windows Server 2008 R2.You need to ensure that all public DNS queries are channeled through a single-caching-only DNS server.Which two actions should you perform?()
A. Disable the root hints.
B. Enable BIND secondaries.
Configure a forwarder to the caching DNS server.
D. Configure a GlobalNames host (A) record for the hostname of the caching DNS server.