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CompTIA.NetworkPlus.N10-005.Authorized.Cert.Guide
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Learn, prepare, and practice for CompTIA Network+ N10-005 exam success with this CompTIA Authorized Cert Guide from Pearson IT Certification, a leader in IT Certification learning and a CompTIA Authorized Platinum Partner. Master Network+ exam topics Assess your knowledge with chapter-ending quizzes Review key concepts with exam preparation tasks
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ptg999
ptg999
800 East 96th Street
Indianapolis, Indiana 46240 USA
CompTIA Network+
N10-005 Authorized
Cert Guide
Kevin Wallace, CCIE #7945
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ptg999
CompTIA Network+ N10-005 Authorized Cert Guide
Copyright © 2012 by Pearson Education, Inc.
All rights reserved. No part of this book shall be reproduced, stored in
a retrieval system, or transmitted by any means, electronic, mechanical,
photocopying, recording, or otherwise, without written permission from
the publisher. No patent liability is assumed with respect to the use of the
information contained herein. Although every precaution has been taken in
the preparation of this book, the publisher and author assume no respon-
sibility for errors or omissions. Nor is any liability assumed for damages
resulting from the use of the information contained herein.
Library of Congress Cataloging-in-Publication Data
Wallace, Kevin, CCNP.
CompTIA Network+ N10-005 cert guide / Kevin Wallace.
p. cm.
Includes index.
ISBN 978-0-7897-4821-8 (hardcover w/dvd)
1. Computer networks—Examinations—Study guides. 2. Electronic data
processing personnel—Certication. I. Title.
TK5105.5.W345 2012
004.6—dc23
2011037792
ISBN-13: 978-0-7897-4821-8
ISBN-10: 0-7897-4821-5
Printed in the United States of America
First Printing: November 2011
Trademarks
All terms mentioned in this book that are known to be trademarks or service
marks have been appropriately capitalized. Pearson IT Certication cannot
attest to the accuracy of this information. Use of a term in this book should
not be regarded as affecting the validity of any trademark or service mark.
Warning and Disclaimer
Every effort has been made to make this book as complete and as accurate as
possible, but no warranty or tness is implied. The information provided is
on an “as is” basis. The authors and the publisher shall have neither liability
nor responsibility to any person or entity with respect to any loss or damages
arising from the information contained in this book or from the use of the
DVD or programs accompanying it.
Bulk Sales
Pearson IT Certication offers excellent discounts on this book when
ordered in quantity for bulk purchases or special sales. For more informa-
tion, please contact
U.S. Corporate and Government Sales
1-800-382-3419
corpsales@pearsontechgroup.com
For sales outside of the U.S., please contact
International Sales
international@pearson.com
Associate Publisher
David Dusthimer
Executive Editor
Brett Bartow
Senior Development
Editor
Christopher Cleveland
Managing Editor
Sandra Schroeder
Project Editor
Mandie Frank
Copy Editor
Sheri Cain
Indexer
Christine Karpeles
Proofreader
Water Crest Publishing
Technical Editors
Michelle Plumb
Theodor Richardson
Publishing Coordinator
Vanessa Evans
Multimedia Developer
Tim Warner
Designer
Gary Adair
Composition
Mark Shirar
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ptg999
Contents at a Glance
Introduction xxvi
CHAPTER 1 Introducing Computer Networks 3
CHAPTER 2 Dissecting the OSI Model 29
CHAPTER 3 Identifying Network Components 59
CHAPTER 4 Understanding Ethernet 107
CHAPTER 5 Working with IP Addresses 139
CHAPTER 6 Routing Traf c 189
CHAPTER 7 Introducing Wide-Area Networks 221
CHAPTER 8 Connecting Wirelessly 257
CHAPTER 9 Optimizing Network Performance 285
CHAPTER 10 Using Command-Line Utilities 315
CHAPTER 11 Managing a Network 357
CHAPTER 12 Securing a Network 385
CHAPTER 13 Troubleshooting Network Issues 437
CHAPTER 14 Final Preparation 461
APPENDIX A Answers to Review Questions 469
APPENDIX B CompTIA Network+ N10-005 Exam Updates, Version 1.0 473
Glossary 475
Index 503
APPENDIX C Memory Tables (DVD Only) 3
APPENDIX D Memory Table Answer Key (DVD Only) 3
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iv CompTIA Network+ N10-005 Authorized Cert Guide
Table of Contents
Introduction xxvi
Chapter 1 Introducing Computer Networks 3
Foundation Topics 4
Defining a Network 4
The Purpose of Networks 4
Overview of Network Components 5
Networks Defined by Geography 7
LAN 7
WAN 8
Other Categories of Networks 9
CAN 9
MAN 9
PAN 9
Networks Defined by Topology 9
Physical Versus Logical Topology 10
Bus Topology 11
Ring Topology 13
Star Topology 15
Hub-and-Spoke Topology 16
Full-Mesh Topology 18
Partial-Mesh Topology 19
Networks Defined by Resource Location 20
Client-Server Networks 20
Peer-to-Peer Networks 22
Summary 24
Exam Preparation Tasks 25
Review All the Key Topics 25
Complete Tables and Lists from Memory 25
Define Key Terms 25
Review Questions 26
Chapter 2 Dissecting the OSI Model 29
Foundation Topics 30
The Purpose of Reference Models 30
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