Your company has one main office and one branch office. The branch office is connected to the main
office by using a wide area network (WAN) link. The network consists of one Active directory
domain. The branch office has two member servers that run Windows Server 2008 R2. One of the
servers is configured as a file server that hosts shared folders. The branch office has a local
administrator. The main office has one standard primary DNS zone that is hosted on a DNS server.
The branch office grows from 100 client computers to 1,000 client computers. You need to
recommend a name resolution solution for the branch office to meet the following requirements:
Users must be able to access file shares on the loca l server if a WAN link fails.
The branch office administrator must be able to modify Active Directory objects while at the
branch office if a WAN link fails.
What should you recommend?
A.
Promote the member server to a domain controller and configure the DNS role. Create a standard
secondary zone.
B.
Promote the member server to a domain controller and configure the DNS role. Create a new
standard primary zone.
C.
Promote the member server to a read-only domain controler (RODC) and configure the DNS role.
Create a primary read-only zone.
D.
Promote the member server to a read-only domain controller (RODC) and configure the DNS role.
Create a new standard secondary zone.
Explanation:
To ensure that the users are allowed to access file shares on the local server and the branch office
administrator are allowed modify Active Directory objects from the branch office in the absence of
the WAN link, you need to promote the member server to a domain controller and create a standard
secondary zone. This is because you want the branch office administrator to modify Active Directory
objects from the branch office. You should not promote the member server to a read-only domain
controller (RODC) because and RODC is read only does not allow you to make any changes to the
Active directory. Besides you need to create a standard secondary zone because you want to ensure
that the users in the branch office are able to log on to the domain even if the WAN link fails.
Primary zones store their zone information in a writable text file on the name server and Secondary
zones store their zone information in a read-only text file on the name server. For a branch office,
Secondary zone is used so that branch office users need not depend on the Primary zone, configured
at the head office to access resources and for logging on.
DNS Stub Zones in Windows Server 2003 Types of DNS Zones
http://www.windowsnetworking.com/articles_tutorials/DNS_Stub_Zones.html