CCNA Cisco Certified Network Associate Study Guide
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CCNA Cisco Certified Network Associate Study Guide CCNA™ Cisco® Certified Network Associate Study Guide Second Edition Todd Lammle San Francisco • Paris • Düsseldorf • Soest • London Associate Publisher: Neil Edde Contracts and Licensing Manager: Kristine O’Callaghan Acquisitions & Developmental Editor: Linda Lee Editors: Susan Berge, Sally Engelfried, Rebecca Rider, and Marilyn Smith Production Editor: Lisa Duran Technical Editors: Patrick Ramseier and Eric Gunnett Book Designer: Bill Gibson Graphic Illustrator: Tony Jonick Electronic Publishing Specialist: Maureen Forys, Happenstance Type-O-Rama Proofreaders: Molly Glover, Jennifer Campbell, Laurie O’Connell, and Camera Obscura Indexer: Matthew Spence CD Coordinator: Kara Schwartz CD Technician: Keith McNeil Cover Designer: Archer Design Cover Photographer: Tony Stone SYBEX and the SYBEX logo are trademarks of SYBEX Inc. in the USA and other countries. 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This book is dedicated to all the Cisco Academy instructors, the unsung heroes of the training industry. They work very hard, are extremely dedicated, and make little money teaching. Their reward is the students progressing, learning, and becoming all they can be. I salute you. Acknowledgments Creating the Acknowledgments is the most difficult part of the book- writing process. Without the help and support of many different individuals, this book, or any other book for that matter, would never be written. So, how can someone actually take a few paragraphs and thank and acknowl- edge everyone involved? I will give it a try anyway. The person I want to thank and acknowledge first is Linda Lee. She is an incredible developmental editor and really helped me develop this book’s outline. I am very happy that she was involved in the process. She worked hard on this book, and the reader now gets to reap the rewards of her labor. Neil Edde is always a shoo-in for appearing in the acknowledgments of all my books. Without Neil, I would not have written the first CCNA book, or even my first Sybex book. He was my first developmental editor, and Linda needs to thank him for working out most of my kinks before he pushed me over to her. Susan Berge and Lisa Duran did a great job of keeping up with the sched- ule and worked very hard with me to get this book shipped on time. For that, I thank them. Kudos to Patrick Ramseier and Eric Gunnett, who did a fab- ulous job of reviewing each chapter for technical accuracy.