Microsoft 70-411 Exam – Q85

Your network contains an Active Directory forest. The forest contains two domains named contoso.com and fabrikam.com. All of the DNS servers in both of the domains run Windows Server 2012 R2. The network contains two servers named Server1 and Server2. Server1 hosts an Active Directoryintegrated zone for contoso.com. Server2 hosts an Active Directory-integrated zone for fabrikam.com. Server1 and Server2 connect to each other by using a WAN link.

Client computers that connect to Server1 for name resolution cannot resolve names in fabnkam.com. You need to configure Server1 to support the resolution of names in fabnkam.com. The solution must ensure that users in contoso.com can resolve names in fabrikam.com if the WAN link fails.

What should you do on Server1?

A. Create a stub zone.
B. Add a forwarder.
C. Create a secondary zone.
D. Create a conditional forwarder.

Correct Answer: C

Explanation:

Primary zone
When a zone that this DNS server hosts is a primary zone, the DNS server is the primary source for information about this zone, and it stores the master copy of zone data in a local file or in AD DS. When the zone is stored in a file, by default the primary zone file is namedzone_name.dns and it is located in the %windir%\System32\Dns folder on the server.

Secondary zone
When a zone that this DNS server hosts is a secondary zone, this DNS server is a secondary source for information about this zone. The zone at this server must be obtained from another remote DNS server computer that also hosts the zone. This DNS server must have network access to the remote DNS server that supplies this server with updated information about the zone. Because a secondary zone is merely a copy of a primary zone that is hosted on another server, it cannot be stored in AD DS.

Stub zone
When a zone that this DNS server hosts is a stub zone, this DNS server is a source only for information about the authoritative name servers for this zone. The zone at this server must be obtained from another DNS server that hosts the zone. This DNS server must have network access to the remote DNS server to copy the authoritative name server information about the zone.

https://technet.microsoft.com/en-us/library/cc771898.aspx