Your network contains an Active Directory forest named contoso.com.
You plan to add a new domain named child.contoso.com to the forest.
On the DNS servers in child.contoso.com, you plan to create conditional forwarders that
point to the DNS servers in contoso.com.
You need to ensure that the DNS servers in contoso.com can resolve names for the servers
in child.contoso.com.
What should you create on the DNS servers in contoso.com?
A.
A zone delegation
B.
A conditional forwarder
C.
A root hint
D.
A trust point
Correct answer: A
Understanding Zone Delegation
Domain Name System (DNS) provides the option of dividing up the namespace into one or more zones, which can then be stored, distributed, and replicated to other DNS servers. When you are deciding whether to divide your DNS namespace to make additional zones, consider the following reasons to use additional zones:
You want to delegate management of part of your DNS namespace to another location or department in your organization.
You want to divide one large zone into smaller zones to distribute traffic loads among multiple servers, improve DNS name resolution performance, or create a more-fault-tolerant DNS environment.
You want to extend the namespace by adding numerous subdomains at once, for example, to accommodate the opening of a new branch or site.
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