CompTIA Network+ Review Guide. Ferguson Bill

      Bill Ferguson

      CompTIA Network+®

CompTIA Network+^®Review GuideExam: N10-006Third Edition

Bill Ferguson

      Senior Acquisitions Editor: Kenyon Brown

      Development Editor: Kim Wimpsett

      Technical Editors: John Davidson and Quentin Docter

      Production Editor: Rebecca Anderson

      Copy Editor: Linda Recktenwald

      Editorial Manager: Mary Beth Wakefield

      Production Manager: Kathleen Wisor

      Associate Publisher: Jim Minatel

      Media Supervising Producer: Richard Graves

      Book Designers: Judy Fung and Bill Gibson

      Proofreader: Rebecca Rider

      Indexer: Johnna VanHoose

      Project Coordinator, Cover: Brent Savage

      Cover Designer: Ryan Sneed

      Cover Image: ©Getty Images, Inc./Jeremy Woodhouse

      Copyright © 2015 by John Wiley & Sons, Inc., Indianapolis, Indiana

      Published simultaneously in Canada

      ISBN: 978-1-119-02116-2

      ISBN: 978-1-119-09816-4 (ebk.)

      ISBN: 978-1-119-09806-5 (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 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 [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: 2015930544

      TRADEMARKS: Wiley 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. CompTIA and Network+ are registered trademarks of CompTIA Properties LLC. 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.

      To my father, who in the 1980s told me to learn as much about computers as I could and to buy and hold Microsoft stock. Regrettably, I took only part of his good advice. Seriously, his purchase of an IBM PC XT computer in 1983 has made all the difference in my life and in my IT career. Unfortunately, Dad passed away on March 6, 2011, at the tender age of 73. I still think about him every time I use a computer. Thanks, Dad, and may you rest in peace!

      Acknowledgments

      First, I’d like to thank Kenyon Brown for giving me the opportunity to write this important book. Several people have assisted me in many ways, so I’d like to acknowledge their contributions and offer my sincere appreciation. Specifically, I’d like to thank John Davidson for his “spot on” technical editing and support throughout the process. My thanks also go to Kim Wimpsett for keeping me on track and helping me put all the final, professional touches on the book. To the many people involved in this effort with whom I never worked one-on-one, thanks! It takes a great team to put together a great book.

      Finally, I’d like to acknowledge the encouragement and prayers of my family and friends and the students in my technical classes and Sunday school classes. In Him, all things are possible!

      About the Author

      Bill Ferguson MCT Alumni, A+, Network+, Server+, Security+, CCSI, VCP3,4,5, VCI3,4,5, VCP-DCV, VCP-NV – has been in the computer industry for more than 20 years. Originally in technical sales and sales management with Sprint, Bill made his transition to Certified Technical Trainer in 1997 with ExecuTrain. Bill now runs his own company (Parallel Connections) as an independent contractor/author in Birmingham, Alabama, teaching classes for many national training companies and some regional training companies, as well as international classes and virtual (online) classes. In addition, Bill writes and produces technical training videos for QuickCert, VTC, Pearson, and Safari Lessons. He has written video titles including A+, Network+, Windows 2000 Management, Windows XP Management, Windows MCDST, Interconnecting Cisco Network Devices, Fundamentals of VMware vSphere Virtualization, and Official Cert Guide for VCP5-DCV. In addition, he wrote the Microsoft Certified Desktop Support Technician (MCDST) Study Guide, the previous two Network+ Review Guides, and the Network+ Fast Pass books for Sybex/Wiley Press. Bill says, “My job is to understand the material so well that I can make it easier for my students to learn than it was for me to learn.”

      Introduction

      The Computing Technology Industry Association (CompTIA) developed the Network+ certification to provide an industry-wide means of certifying the competency of computer service technicians in the basics of computer networking. The Network+ certification is granted to those individuals who have attained a level of knowledge and networking skills that show a basic competency with the networking needs of both personal and corporate computing environments.

      CompTIA’s exam objectives are periodically updated to keep its exams applicable to the most recent technological developments. The foundational elements, however, remain constant even as higher-end technology advances. The Network+ objectives have recently been changed to a small degree to reflect the very latest changes in technology. At the time of this writing, this book is current for the 2015 Network+ N10-006 exam objectives as stated by CompTIA (www.comptia.org).

      What