640-802 dumps, 350-001 testking and VCP-310

You need to design a domain name resolution strategy for the external network.350-001
You need to ensure that your solution meets the business and technical
requirements of IT Training Institute.

What should you do?

A. Create a root zone on IT-DC03.
B. Create a stub zone for the external namespace on IT-DC03.
C. Configure default root hints on IT-DC03.
D. Configure IT-DC03 to use the ISP's DNS server as a forwarder.
Answer: A
Explanation: IT-DC03 needs to resolve names only for the external name space.
Therefore you need to configure a private root zone for the external name space.

Incorrect Answers:


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B: There is only one DNS server on the external network. Therefore a stub zone is not
required.

640-802 A stub zone is a copy of a zone that contains only the resource records needed
to identify an authoritative DNS server.

VCP-310
C: You should disable root hints on the external DNS server as it must not provide name
resolution for the internal names space or for Internet hosts.
D: You need to prevent IT-DC03 from resolving names of Internet-based hosts.
Therefore you should not allow IT-DC03 to forward requests.

Reference:
J. C. Mackin, and Ian McLean: MCSA/MCSE self-paced training kit (exam 70-291):
Implementing, managing, and maintaining a Microsoft Windows Server 2003 network
infrastructure, Microsoft, Chapter 4, pp. 4-19, and Chapter 5, pp. 5-6.
Walter Glenn, and Michael T. Simpson; MCSE 70-297 Training Kit - Designing a
Windows server 2003 Active Directory and Network Infrastructure, Chapter 6, pp. 6-26.

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