Your network consists of one Active Directory forest that contains one root domain and 10 child
domains. Administrators of the child domains frequently modify the records for authoritative DNS
servers for the child domain DNS zones. You need to recommend a solution to minimize the amount
of manual configuration steps required to maintain name resolution on the network. What should
you recommend?
A.
On the child domain DNS servers, create stub zones for the root domain zone.
B.
On the child domain DNS servers, configure conditional forwarders for the parent domain.
C.
On the root domain DNS servers, create stub zones for the child domain zones.
D.
On the root domain DNS servers, configure delegation subdomain records for the child domains.
Explanation:
To implement a solution that would minimize the effort required to maintain name resolution on the
network, you need to create stub zones for the child domain zones on the root domain DNS servers.
Stub zones can help reduce the amount of DNS traffic on your network by streamlining name
resolution and zone replication. The Stub zone should be configured for the child domain zones on
the root domain DNS servers and not vice versa because a stub zone is like a secondary zone that
obtains its resource records from other name servers (one or more master name servers).
DNS Stub Zones in Windows Server 2003
http://www.windowsnetworking.com/articles_tutorials/DNS_Stub_Zones.html