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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.
Correct Answer: C
Explanation/Reference:
A stub zone is a copy of a zone that contains only those resource records necessary to identify the authoritative Domain Name System (DNS) servers for that zone. A stub zone is used to resolve names between separate DNS namespaces. This type of resolution may be necessary when a corporate merger requires that the DNS servers for two separate DNS namespaces resolve names for clients in both namespaces.
A conditional forwarder is a Domain Name System (DNS) server on a network that you use to forward DNS queries according to the DNS domain name in the query. For example, you can configure a DNS server to forward all the queries it receives for names ending with widgets.contoso.com to the IP address of a specific DNS server or to the IP addresses of multiple DNS servers.