Swartz Matt Burton Marcus Head Thomas W. Jackman - CWDP Certified Wireless Design Professional Official Study Guide

Contents

Acquisitions Editor: Jeff Kellum

Development Editor: Denise Santoro Lincoln

Technical Editors: Jennifer Huber; Jerome Henry

Production Editor: Dassi Zeidel

Copy Editor: Liz Welch

Editorial Manager: Pete Gaughan

Production Manager: Tim Tate

Vice President and Executive Group Publisher: Richard Swadley

Vice President and Publisher: Neil Edde

Media Project Manager 1: Laura Moss-Hollister

Media Associate Producer: Doug Kuhn

Media Quality Assurance: Shawn Patrick

Book Designers: Judy Fung and Bill Gibson

Proofreader: Publication Services, Inc.

Indexer: Ted Laux

Project Coordinator, Cover: Katie Crocker

Cover Designer: Ryan Sneed

Copyright 2011 by Wiley Publishing, Inc., Indianapolis, Indiana

Published simultaneously in Canada

ISBN: 978-0-470-76904-1

ISBN: 978-1-118-04159-8 (ebk.)

ISBN: 978-1-118-04161-1 (ebk.)

ISBN: 978-1-118-04160-4 (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, (978) 750-8400, fax (978) 646-8600. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permissions .

Limit of Liability/Disclaimer of Warranty: The publisher and the author make no representations or warranties 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. Further, 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 (877) 762-2974, outside the U.S. at (317) 572-3993 or fax (317) 572-4002.

Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic books.

Library of Congress Cataloging-in-Publication Data

CWDP : certified wireless design professional official study / Shawn M. Jackman... [et al.]. 1st ed.

p. cm.

ISBN 978-0-470-76904-1 (pbk.)

1. Wireless LANsDesign and constructionExaminationsStudy guides. 2. Telecommunications engineersCertification. I. Jackman, Shawn M., 1974- II. Title: Certified wireless design professional official study guide.

TK5105.78.C94 2011

621.384076dc22

2010054032

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. CWDP is a trademark of CWNP, Inc. All other trademarks are the property of their respective owners. Wiley Publishing, Inc., is not associated with any product or vendor mentioned in this book.

Dear Reader,

Thank you for choosing CWDP: Certified Wireless Design Professional Official 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, were still committed to producing consistently exceptional books. With each of our titles, were 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. Id be very interested to hear your comments and get your feedback on how were doing. Feel free to let me know what you think about this or any other Sybex book by sending me an email at . Customer feedback is critical to our efforts at Sybex.

Best regards,

Neil Edde

Vice President and Publisher

Sybex, an Imprint of Wiley

We dedicate this book to our families and the continued support that has helped to make this book possible.

Acknowledgments

Shawn Jackman would like to thank his wife, Joy, and his children, Summer, Pierce, and Julia, for the years of unwavering love and support.

Marcus Burton would like to thank his beautiful God, his beautiful wife, and his beautiful kids, Noah and Amalia. Lindsey, I love you today!

Marcus would also like to give an honorable mention to his significantly less beautiful brothers in arms, Devin, Josiah, and the Pudloafs.

Matt Swartz would like to thank his wife, Christie, and children, Lauren and Kyla, for their constant love and support.

Tom Head would like to thank his wife, Meridith, and his children, Laura and Ethan, for their loving support during the writing of this book.

We would all like to thank the following individuals for their support and contributions during the entire process:

We must first thank Sybex Acquisitions Editor Jeff Kellum. Jeff is an extremely patient and understanding editor who occasionally sends a nasty email message, especially when our day jobs take us away from writing for too long. We would also like to thank our development editor, Denise Lincoln. We also need to send special thanks to our editorial manager Pete Gaughan and our production editor Dassi Zeidel, and Liz Welch, our copyeditor. We also want to thank Jennifer Huber and Jerome Henry, our technical editors.

In addition, we thank Kevin Sandlin and Marcus Burton with the CWNP program ( www.cwnp.com ). You should be proud of the international renowned wireless certification program that you and your team have developed. It has been a pleasure working with all of you over the years.

A special thank you goes to Young Kim for his contribution to Chapter 15. Youngs expertise is deep and wide in both networking and wireless, and his many years of experience with troubleshooting wireless networks is a valuable contribution for all readers.

Shawn would also like to thank the following co-workers and professional colleagues who contributed to this book and his career: Devin Akin, Nico Arcino, Marcus Burton, David Coleman, Ken Fisch, Tom Head, Jon Krabbenschmidt, Charlie Nowak, Zack Ryan, Adam Schembs, George Stefanick, and Matt Swartz.