tailieunhanh - Cisco Press - CCNA Exam 604-507 Certification Guide

Professional certifications have been an important part of the computing industry for many years and will continue to become more important. Many reasons exist for these certifications, but the most popularly cited reason is that of credibility. All other considerations held equal, the certified employee/consultant/job candidate is considered more valuable than one who is not. Objectives and Methods The most important and somewhat obvious objective of this book is to help you pass the CCNA exam (640-507). In fact, if the primary objective of this book was different, then the book’s title would be misleading; however, the methods used in this book to help you pass the. | Cisco CCNA Exam 640-507 Certification Guide Wendell Odom CCIE 1624 Cisco Systems Cisco Press Cisco Press 201 W 103rd Street Indianapolis IN 46290 ii Cisco CCNA Exam 640-507 Certification Guide Wendell Odom Copyright 2000 Lacidar Unlimited Inc. Cisco Press logo is a trademark of Cisco Systems Inc. Published by Cisco Press 201 West 103rd Street Indianapolis IN 46290 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 publisher except for the inclusion of brief quotations in a review. Printed in the United States of America 1 2 3 4 5 6 7 8 9 0 Library of Congress Cataloging-in-Publication Number 99-67898 ISBN 0-7357-0971-8 Warning and Disclaimer This book is designed to provide information about the Cisco CCNA 640-507 exam. 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 author 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. Trademark Acknowledgments 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 affecting the validity of any trademark or service mark. Feedback Information At Cisco Press our goal is to create in-depth technical books of the highest quality and value. Each book is crafted with care and precision undergoing .