CCNP BSCI Ofﬁcial Exam Certiﬁcation Guide, Fourth Edition
Brent D. Stewart, Clare Gough
Copyright © 2008 Cisco Systems, Inc.
Cisco Press logo is a trademark of Cisco Systems, Inc.
800 East 96th Street
Indianapolis, IN 46240 USA
All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical,
including photocopying, recording, or by any information storage and retrieval system, without written permission from the pub-
lisher, except for the inclusion of brief quotations in a review.
Printed in the United States of America
Third Printing July 2008
Library of Congress Catalog Card Number: 2004113747
Portions of Chapters 17–19 have been adapted from Chapter 15 of CCNP BCMSN Ofﬁcial Exam Certiﬁcation Guide by Dave
Hucaby; ISBN-13: 978-1-58720-142-4, ISBN-10: 1-58720-142-9 © Cisco Systems, Inc. 2006.
Warning and Disclaimer
This book is designed to provide information about BSCI Certiﬁcation. Every effort has been made to make this book as complete
and as accurate as possible, but no warranty or ﬁtness is implied.
The information is provided on an “as is” basis. The authors, Cisco Press, and Cisco Systems, Inc., 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 discs or programs that may accompany it.
The opinions expressed in this book belong to the author and are not necessarily those of Cisco Systems, Inc.
All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized. Cisco Press
or Cisco Systems, Inc., cannot attest to the accuracy of this information. Use of a term in this book should not be regarded as affect-
ing the validity of any trademark or service mark.
Corporate and Government Sales
The publisher offers excellent discounts on this book when ordered in quantity for bulk purchases or special sales, which may include
electronic versions and/or custom covers and content particular to your business, training goals, marketing focus, and branding interests.
For more information, please contact: U.S. Corporate and Government Sales 1-800-382-3419 email@example.com.
For sales outside the United States, please contact: International Sales firstname.lastname@example.org.