CCNA Routing and Switching Study Guide: Exams 100-101, 200-101, and 200-120

1178 Pages·2013·39.478 MB·English

by  Todd Lammle

CCNA®
Routing and Switching
Study Guide

CCNA®
Routing and Switching
Study Guide
Todd Lammle
Senior Acquisitions Editor: Jeff Kellum
Development Editor: Pete Gaughan
Technical Editors: John Swartz and Dax Mickelson
Production Editor: Christine O’Connor
Copy Editor: Judy Flynn
Editorial Manager: Pete Gaughan
Production Manager: Tim Tate
Vice President and Executive Group Publisher: Richard Swadley
Associate Publisher, Sybex: Chris Webb
Media Project Manager I: Laura Moss-Hollister
Media Associate Producer: Marilyn Hummel
Media Quality Assurance: Doug Kuhn
Book Designers: Judy Flynn and Bill Gibson
Compositor: Craig Woods, Happenstance Type-O-Rama
Proofreader: Sarah Kaikini, Word One New York
Indexer: Robert Swanson
Project Coordinator, Cover: Katherine Crocker
Cover Designer: Ryan Sneed
Copyright © 2013 by John Wiley & Sons, Inc., Indianapolis, Indiana
Published by John Wiley & Sons, Inc. Indianapolis, Indiana
Published simultaneously in Canada
ISBN: 978-1-118-74961-6
ISBN: 978-1-118-74973-9 (ebk.)
ISBN: 978-1-118-74970-8 (ebk.)
No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by
any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under
Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of
the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance
Center, 222 Rosewood Drive, Danvers, MA 01923, [phone], fax [phone]. Requests to the
Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111
River Street, Hoboken, NJ 07030, [phone], fax [phone], or online at http://www.wiley.com/
go/permissions.
Limit of Liability/Disclaimer of Warranty: The publisher and the author make no representations or war-
ranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim
all warranties, including without limitation warranties of fitness for a particular purpose. No warranty
may be created or extended by sales or promotional materials. The advice and strategies contained herein
may not be suitable for every situation. This work is sold with the understanding that the publisher is not
engaged in rendering legal, accounting, or other professional services. If professional assistance is required,
the services of a competent professional person should be sought. Neither the publisher nor the author shall
be liable for damages arising herefrom. The fact that an organization or Web site is referred to in this work
as a citation and/or a potential source of further information does not mean that the author or the publisher
endorses the information the organization or Web site may provide or recommendations it may make. Fur-
ther, readers should be aware that Internet Web sites listed in this work may have changed or disappeared
between when this work was written and when it is read.
For general information on our other products and services or to obtain technical support, please contact
our Customer Care Department within the U.S. at [phone], outside the U.S. at [phone] or
fax [phone].
Wiley publishes in a variety of print and electronic formats and by print-on-demand. Some material included
with standard print versions of this book may not be included in e-books or in print-on-demand. If this book
refers to media such as a CD or DVD that is not included in the version you purchased, you may download this
material at http://booksupport.wiley.com. For more information about Wiley products, visit www.wiley.com.
Library of Congress Control Number: 2013948006
TRADEMARKS: Wiley, the Wiley logo, and the Sybex logo are trademarks or registered trademarks of John
Wiley & Sons, Inc. and/or its affiliates, in the United States and other countries, and may not be used without
written permission. CCNA is a registered trademark of Cisco Technology, Inc. All other trademarks are the
property of their respective owners. John Wiley & Sons, Inc. is not associated with any product or vendor
mentioned in this book.
10 9 8 7 6 5 4 3 2 1
Dear Reader,
Thank you for choosing CCNA Routing and Switching Study Guide. This book is part of a
family of premium-quality Sybex books, all of which are written by outstanding authors who
combine practical experience with a gift for teaching.
Sybex was founded in 1976. More than 30 years later, we’re still committed to producing con-
sistently exceptional books. With each of our titles, we’re working hard to set a new standard
for the industry. From the paper we print on, to the authors we work with, our goal is to bring
you the best books available.
I hope you see all that reflected in these pages. I’d be very interested to hear your comments and
get your feedback on how we’re doing. Feel free to let me know what you think about this or any
other Sybex book by sending me an email at [email protected]. If you think you’ve found
a technical error in this book, please visit http://sybex.custhelp.com. Customer feedback is
critical to our efforts at Sybex.
Best regards,
Chris Webb
Associate Publisher,
Sybex
Acknowledgments
There are many people that work to put a book together, and as an author, I dedicated an
enormous amount of time to write this book, but it would have never been published with-
out the dedicated, hard work of many other people.
Monica Worthy Lammle was crucial to the finished product this book became, going
over every word of every chapter with me to fine-tune the language and grammar. Without
Monica’s support in all areas of my life, I’d never have finished writing this book.
Next in line to thank is my new technical editor, John Swartz, who also coauthored
the CCNA Data Center study guides with me. His expertise in the Cisco technical field,
and his history of networking in general, is second to none. His detailed analysis of my
work helped make this my best CCNA study guide ever. Thank you, John, for working
hard under pressure, with tight deadlines, and for staying the course of delivering high-
quality work in a short time frame.
Jeff Kellum, my acquisitions editor, is instrumental to my success in the world of Cisco
certification. Jeff, I look forward to our continued progress together.
Christine O’Connor, my production editor, and Judy Flynn, my copyeditor, were my
rock and foundation for formatting an intense editing of every page in this book. This
amazing team gives me the confidence to help keep me moving during the difficult and very
long days, week after week. How Christine stays so organized with all my changes, as well
as making sure every figure is in the right place in the book is still a mystery to me! You’re
amazing, Christine! Thank you! Judy understands my writing style so well now, after doing
at least a dozen books with me, that she even sometimes finds a technical error that may
have slipped through as I was going through the material. Thank you Judy for doing such
a great job! I truly thank you both.
Troy McMillian really helped me on this book (on all books actually!) by working on
the review and bonus questions, flash cards, as well as a 3rd technical edit on the last stage
of editing. He did a high-quality job in a short time! Thanks, Troy! Jim Frey and Paul
Sutton really helped me put together this book’s amazing figures, and an all-around second-
look technical edit. Thank you both!
Also, thanks to Dax Mickelson and Dennis Frye for performing the technical proofread
of the book.
Finally, a big thanks to Craig Woods at Happenstance-Type-O-Rama and to the Sybex
media-development team.
About the Author
Todd Lammle is the authority on Cisco certification and internetworking and is Cisco certi-
fied in most Cisco certification categories. He is a world-renowned author, speaker, trainer,
and consultant. Todd has three decades of experience working with LANs, WANs, and large
enterprise licensed and unlicensed wireless networks, and lately he’s been implementing large
Cisco data centers worldwide. His years of real-world experience is evident in his writing; he
is not just an author but an experienced networking engineer with very practical experience
working on the largest networks in the world, at such companies as Xerox, Hughes Aircraft,
Texaco, AAA, Cisco, and Toshiba, among many others. Todd has published over 60 books,
including the very popular CCNA: Cisco Certified Network Associate Study Guide, CCNA
Wireless Study Guide, and CCNA Data Center Study Guide, all from Sybex. He runs an
international consulting and training company based in Colorado, Texas, and San Francisco.
You can reach Todd through his forum and blog at www.lammle.com.