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The Real MCTS/MCITP Exam 70-642 Prep Kit
book

The Real MCTS/MCITP Exam 70-642 Prep Kit

by Brien Posey
April 2011
Intermediate to advanced content levelIntermediate to advanced
800 pages
17h 5m
English
Syngress
Content preview from The Real MCTS/MCITP Exam 70-642 Prep Kit
202 Chapter 2 • Configuring DNS
www.syngress.com
Summary of Exam Objectives
DNS allows hosts and services to be located on IP networks using user-friendly, fully
qualified domain names instead of IP addresses. When a user attempts to access a
Web site, for example, their local DNS resolver first checks its cache followed by the
local host file to see if the address of the web server is stored locally. If it isn’t, the
resolver then contacts a DNS server using a client-to-server query. This type of query
requests an answer that either provides the needed information or informs the client
that the information cannot be located. If the DNS serv
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Publisher Resources

ISBN: 9781597492461