Todd Lammle - CCNA ICND2 Study Guide Exam 200-101

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Dear Reader,

Thank you for choosing CCNA ICND2 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.

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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 contactus@sybex.com . If you think youve found a technical error in this book, please visit http://sybex.custhelp.com . Customer feedback is critical to our efforts at Sybex.

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Chris Webb

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There are many people who work to put a book together, and although as an author I dedicate an enormous amount of time to write the book, it would never be published without the dedicated, hard work of those other people.

Monica Worthy Lammle was crucial to the finished product this book became, going over every word of every chapter to fine-tune the language and grammar. Without Monicas support in all areas of my life, Id never have finished writing this book.

Next in line to thank was my new technical editor, John Swartz, who also co-authored the CCNA Data Center Study Guide with me. His expertise in the Cisco technical field, and his history of networking in general, is second to none. His detailed analysis of my work helped make this my best CCNA R/S Study Guide ever. Thank you, John, for working hard under pressure, with tight deadlines, and for staying the course of delivering high-quality work in a short time frame.

Jeff Kellum, my acquisitions editor, is instrumental to my success in the Cisco world. Jeff, I look forward to our continued progress together in the Cisco certification world.

Christine OConnor, my production editor, and Judy Flynn, my copy editor, are my rock and foundation for formatting and intense editing of every page in this book. This amazing team gives me the confidence to help me keep moving during the difficult and very long days, week after week. How Christine stays so organized with all my enormous amount of changes, as well as making sure every figure is in the right place in the book is still a mystery to me! Youre amazing, Christine! Thank you! Judy understands my writing style so well now, after doing at least a dozen books with me, that she can tell when I made a technical error that I may have missed when previously going through the material. Thank you, Judy, for doing such a great job! I truly thank you both.

Troy McMillian, Jim Frey, and Paul Sutton really provided support during the writing process: Troy helping me together the bonus questions and flash cards and his super detailed eye when it comes to second, third, and fourth edits, Jim with the amazing figures and all-around administrative support, and Paul with the all-around third-look technical edit. Thank you all!

Finally, a big thanks to Craig Woods at Happenstance-Type-O-Rama and to the Sybex media-development team.