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

You are designing a DNS implementation strategy to meet the business and
technical requirements on the new network.

What should you do?

A. Implement a private root zone on the internal network.
B. Create a stub zone on the external network DNS servers for the DNS zone on the
internal network.
C. Implement primary zones and secondary zones on the internal network.
D. Configure forwarding on the internal network DNS servers to the DNS servers on the
external network.
E. Configure a delegation on the external network DNS servers to the DNS zone on the
internal network.
Answer: D
Explanation
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: you need to configure forwarding on the internal network DNS servers to the DNS
servers on the external network as this will ensure that clients on the internal network can
resolve the external and Internet names.
1. Our employees should be able to access resources on both networks and on the
Internet.
2. We are not going to register any additional names with Internet Authorities.350-001 The
internal namespace must be intuitive and should not cause any confusion or conflicts
with any registered names on the Internet

Incorrect Answers:
A: A private root zone is ideal for a very large network that included multiple domains
that is organized in a multi layered hierarchy.
640-802 However using a private root zone in this
scenario will not provide any advantage and will result in complicating DNS
administration.
B: A stub zone is a zone that contains information only about the authoritative servers for
a particular zone.VCP-310 Implementing a stub zone in this scenario as suggested here will cause
the DNS servers on the internal network to respond to the DNS queries for names on the
external network by returning a referral to the authoritative DNS server. This is not what
is required:
1. Absolutely no DNS information regarding the internal network should be exposed to
the external network or the Internet.
C: For standard primary zones, only a single server can host and load the master copy of
the zone. If you create a zone and keep it as a standard primary zone, no additional
primary servers for the zone are permitted. The standard primary model implies a single
point of failure.
E: If you created a delegation to the internal zone, then the external DNS servers could
be used for referrals to the internal DNS servers to Internet users. This will be
unacceptable:
1. Absolutely no DNS information regarding the internal network should be exposed to
the external network or the Internet.

Reference:
Walter Glenn, and Michael T. Simpson, MCSE 70-297 Training Kit - Designing a
Windows server 2003 Active Directory and Network Infrastructure, Chapter 6, pp. 6-12
to 6-13.
Microsoft Windows Server 2003 Online Help - Network services - Understanding DNS,
domain names, how DNS query works, understanding forwarders