Security Study Guide | Security+ Study Guide

Michael Pastore

Associate Publisher: Neil Edde
Acquisitions Editor: Elizabeth Hurley
Developmental Editor: Jeff Kellum
Production Editor: Lori Newman
Technical Editors: Warren Wyrostek, David Groth
Copyeditor: Kathy Grider-Carlyle
Compositor: Rozi Harris, Interactive Composition Corporation
Graphic Illustrator: Tony Jonick
CD Coordinator: Dan Mummert
CD Technician: Kevin Ly
Proofreaders: Emily Hsuan, David Nash, Laurie O'Connell, Yariv Rabinovitch, Nancy Riddiough, Sarah Tannehill
Indexer: Rebecca Plunkett
Book Designer: Bill Gibson
Cover Designer: Archer Design
Cover Photographer: R.H. Smith, Natural Selection

Copyright © 2003 SYBEX Inc., 1151 Marina Village Parkway, Alameda, CA 94501. World rights reserved. No part of this publication may be stored in a retrieval system, transmitted, or reproduced in any way, including but not limited to photocopy, photograph, magnetic, or other record, without the prior agreement and written permission of the publisher.

Library of Congress Card Number: 2002113843

ISBN: 0-7821-4098-X

SYBEX and the SYBEX logo are either registered trademarks or trademarks of SYBEX Inc. in the United States and/or other countries.

The logo of the CompTIA Authorized Curriculum Program and the status of this or other training material as "Authorized" under the CompTIA Authorized Curriculum Program signifies that, in CompTIA's opinion, such training material covers the content of the CompTIA's related certification exam. CompTIA has not reviewed or approved the accuracy of the contents of this training material and specifically disclaims any warranties of merchantability or fitness for a particular purpose. CompTIA makes no guarantee concerning the success of persons using any such "Authorized" or other training material in order to prepare for any CompTIA certification exam.

The contents of this training material were created for the CompTIA Security+ exam covering CompTIA certification exam objectives that were current as of September 2002.

How to Become CompTIA Certified:

This training material can help you prepare for and pass a related CompTIA certification exam or exams. In order to achieve CompTIA certification, you must register for and pass a CompTIA certification exam or exams.

In order to become CompTIA certified, you must:

Select a certification exam provider. For more information please visit http://www.comptia.org/certification/general_information/test_locations.asp
Register for and schedule a time to take the CompTIA certification exam(s) at a convenient location.
Read and sign the Candidate Agreement, which will be presented at the time of the exam(s). The text of the Candidate Agreement can be found at http://www.comptia.org/certification/general_information/candidate_agreement.asp
Take and pass the CompTIA certification exam(s).

For more information about CompTIA's certifications, such as their industry acceptance, benefits, or program news, please visit http://www.comptia.org/certification/default.asp

CompTIA is a non-profit information technology (IT) trade association. CompTIA's certifications are designed by subject matter experts from across the IT industry. Each CompTIA certification is vendor-neutral, covers multiple technologies, and requires demonstration of skills and knowledge widely sought after by the IT industry.

To contact CompTIA with any questions or comments:
Please call + 1 630 268 1818
questions@comptia.org

Sybex is an independent entity from CompTIA and is not affiliated with CompTIA in any manner. Neither CompTIA nor Sybex warrants that use of this publication will ensure passing the relevant exam. Security+ is either a registered trademark or trademark of CompTIA in the United States and/or other countries.

TRADEMARKS: SYBEX has attempted throughout this book to distinguish proprietary trademarks from descriptive terms by following the capitalization style used by the manufacturer.

The author and publisher have made their best efforts to prepare this book, and the content is based upon final release software whenever possible. Portions of the manuscript may be based upon pre-release versions supplied by software manufacturer(s). The author and the publisher make no representation or warranties of any kind with regard to the completeness or accuracy of the contents herein and accept no liability of any kind including but not limited to performance, merchantability, fitness for any particular purpose, or any losses or damages of any kind caused or alleged to be caused directly or indirectly from this book.

Manufactured in the United States of America

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To Our Valued Readers:

Sybex is proud to have served as a cornerstone member of CompTIA's Security+ Advisory Committee. Just as CompTIA is committed to establishing measurable standards for certifying IT security professionals, Sybex is committed to providing those individuals with the skills needed to meet those standards. By working alongside CompTIA, and in conjunction with other esteemed members of the Security+ committee, it is our desire to help bridge the knowledge and skills gap that currently confronts the IT industry.

Our authors, editors, and technical reviewers have worked hard to ensure that this Security+ Study Guide is comprehensive, in-depth, and pedagogically sound. We're confident that this book will meet and exceed the demanding standards of the certification marketplace and help you, the Security+ exam candidate, succeed in your endeavors.

Good luck in pursuit of your Security+ certification!

Neil Edde
Associate Publisher—Certification
Sybex, Inc.

For John Pastore and Peter Steinberg, two fine young men who left us too soon.They would want us to remember to enjoy life and care about each other. They are truly missed.

Acknowledgments

I want to thank…
…First, I would like to thank my wife, Sheryl, for her support and encouragement throughout the writing of this book. I also want to acknowledge my son Mark and my daughter Erin. Thank you for being there for me, as you always have been during this process.
…Second, special thanks are extended to Rod Jackson for his work on the Flash Cards and the Bonus Exams, and to Emmett Dulaney for his work on the Glossary.
…Third, to the talented Sybex staff who assisted me: their hard work and dedication in getting this book done was impressive.