Cisco CCNA Routing and Switching 200-120 Exam Cram

1 Cisco CCNAR outing and Switching 200-120 Fourth EditionMichael ValentineKeith i12/3/13 1:34 PMCisco ccna Routing and Switching 200-120 Exam Cram, Fourth EditionCopyright 2014 by Pearson Education, 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 infor-mation contained herein. Although every precaution has been taken in the preparation of this book, the publisher and author assume no responsibility for errors or omissions.

2 Nor is any liability assumed for damages resulting from the use of the information contained : 978-0-7897-5109-6 ISBN-10: 0-7897-5109-7 Library of Congress Cataloging-in-Publication Data: 2013955307 Printed in the United States on AmericaFirst Printing: December 2013 TrademarksAll terms mentioned in this book that are known to be trademarks or ser-vice marks have been appropriately capitalized. Pearson 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 and DisclaimerEvery effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied.

3 The information provided is on an as is basis. The author and the publisher shall have neither liability nor responsibility to any person or entity with respect to any loss or dam-ages arising from the information contained in this book or from the use of the CD or programs accompanying SalesFor information about buying this title in bulk quantities, or for special sales opportunities (which may include electronic versions; custom cover designs; and content particular to your business, training goals, marketing focus, or branding interests), please contact our corporate sales department at or (800)

4 Government sales inquiries, please contact questions about sales outside the , please contact BogerAssociate PublisherDavid DusthimerExecutive EditorBrett BartowSenior Development EditorChristopher ClevelandManaging EditorSandra SchroederProject EditorSeth KerneyCopy EditorKeith ClineIndexerKen JohnsonProofreaderJess DeGabrieleTechnical EditorsBrian D AndreaAndrew WhitakerPublishing CoordinatorVanessa EvansMultimedia DeveloperLisa MatthewsBook DesignerMark ShirarPage LayoutBumpy ii12/3/13 1:34 PMContents at a Glance Introduction 1 Self-Assessment 21 CHAPTER 1 Networking Fundamentals 29 CHAPTER 2 Network Models 43 CHAPTER 3 Concepts in IP Addressing 73 CHAPTER 4 Working with Cisco Equipment 137 CHAPTER 5 Securing Your Cisco Devices 173 CHAPTER 6 Basic Switch Operations and Configuration 193 CHAPTER

5 7 Basic Routing 229 CHAPTER 8 Visualizing Data Flow Between Two Hosts on a Network 275 CHAPTER 9 IP Access Lists 293 CHAPTER 10 IP Services 323 CHAPTER 11 Troubleshooting 351 CHAPTER 12 Advanced Switching Concepts 381 CHAPTER 13 Advanced Router Operation 419 CHAPTER 14 Advanced IP Services 457 CHAPTER 15 WAN Operation 479 CHAPTER 16 Advanced Troubleshooting 505 Practice Exam 1 539 Answer Key to Practice Exam 1 575 Practice Exam 2 587 Answer Key to Practice Exam 2 625 Glossary 635 Index iii12/3/13 1:34 PMTable of ContentsIntroduction.

6 1 Taking a Certification Exam ..2 Tracking Your Certification Status ..3 How to Prepare for an Exam ..4 What This Book Will Not Do ..5 What This Book Is Designed to Do ..5 About This Book ..6 ccna Official Exam Topics ..6 Chapter Formats ..15 Pearson IT Certification Practice Test Engine and Questions on the CD-ROM ..17 Install the Software from the CD ..18 Activate and Download the Practice Exam ..19 Activating Other Exams ..19 Contacting the Authors ..20 Self-Assessment ..21 ccna in the Real World ..21 The Ideal ccna Candidate ..22 Put Yourself to the Test.

7 23 CHAPTER 1:Networking Fundamentals ..29 Essential Terms and Components ..30 Topologies ..31 Ethernet ..32 WAN Technologies ..35 Review Questions ..38 Answers to Review Questions ..40 What Next? ..41 CHAPTER 2: Network Models ..43 Cisco Hierarchical Design ..44 Access Layer .. iv12/3/13 1:34 PMvTable of ContentsDistribution Layer ..45 Core Layer ..45 Advantages of the Three-Layer Model ..46 OSI Model ..48 Layer 7: The Application Layer ..49 Layer 6: The Presentation Layer ..51 Layer 5: The Session Layer ..51 Layer 4: The Transport Layer ..51 Layer 3: The Network Layer.

8 58 Layer 2: The Data Link Layer ..60 Layer 1: The Physical Layer ..61 TCP/IP Model ..65 Review Questions ..68 Answers to Review Questions ..71 CHAPTER 3:Concepts in IP Addressing ..73 Binary ..74 Hexadecimal ..78 Conversion Between Binary, Hex, and Decimal ..79 Decimal to Hexadecimal Conversions ..79 Hexadecimal to Decimal Conversions ..79IP Address Components ..81 Address Class ..81 Public and Private IP Addresses ..82 Default Subnet Mask ..82 The Network Field ..83 The Host Field ..84 Nondefault Masks ..84 The Subnet Field ..85 Subnetting ..86 Address Class and Default Mask.

9 87 The Increment ..88 Number of Hosts ..90 The Broadcast ID ..92 Number of Subnets .. v12/3/13 1:34 PMviCisco ccna Routing and Switching 200-120 Exam CramWorking with Subnetting Questions ..95 The Subnetting Chart ..97 VLSM ..100 Route Summarization ..104 Summarization Guidelines ..106 Determining Summary Addresses ..108 IPv6 ..114 IPv6 Address Allocation ..116 IPv6 Address Notation ..117 Types of IPv6 Addresses ..118 IPv6 Address Configuration ..119 IPv6 Router Configuration ..120 IPv6 Features ..121 The IPv6 Header ..122 IPv6 Transition Strategies.

10 123 Review Questions ..126 Answers to Review Questions ..132 What Next? ..135 CHAPTER 4:Working with Cisco Your Cisco Gear ..138 External Connections ..139 Other Connections ..143 Connecting and Configuring Cisco Devices ..145 Device Memory Locations ..146 IOS Startup Process ..146 Setup Mode ..148 Configuration Register ..148 Password Recovery ..149 Command-Line Modes ..150 Command Shortcuts ..152 Context-Sensitive Help ..153 Managing IOS Licensing ..154 Remote Management ..156 Telnet ..156 Secure Shell .. vi12/3/13 1:34 PMviiTable of ContentsCisco Discovery Protocol.