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Dear Reader,

Thank you for choosing CCNA Data Center: Introducing Cisco Data Center Networking 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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Acknowledgments

I would first like to thank my acquisitions editor, Jeff Kellum. I’ve worked with Jeff for more years than I can remember, and his experience of working with me and the Cisco certification process is a needed asset for my success. Thanks for hanging in there once again, Jeff!

Working with David Clark as my developmental editor was a first, and it was a smooth, pleasant experience—thank you, David!

In addition, Judy Flynn and Christine O’Connor made the editorial process a breeze. I was very happy when I heard they were working with me once again on this new book! I look forward to many more projects with this great team.

I also want to thank my technical editor, Ryan Lindfield. His dedicated, concise comments have been invaluable and have made this a better book. The technical proofreader is Isaac Valdez, and he has been very detailed, making sure that Ryan, John, and I didn’t miss any details. Thank you all!

Thanks also to the Vertical Websites team, whose hard work has resulted in a power-packed, good-looking online test engine. And last but not least, thanks to proofreaders Sarah Kaikini and Dan Aull, indexer Robert Swanson, and compositor Craig Woods at Happenstance Type-O-Rama.

About the Authors

Todd Lammle holds numerous Cisco certifications and is the authority on Cisco certification. He is a world-renowned author, speaker, trainer, and consultant. Todd has over 30 years of experience working with LANs, WANs, large licensed and unlicensed wireless networks, and for the last few years, data center technologies. He is president of GlobalNet Training and Consulting, Inc., a network integration and training firm based in Dallas, San Francisco, and Boulder, Colorado. You can reach Todd through his forum at www.lammle.com.

John Swartz, CCIE No. 4426, is the founder of Boson Software, 3DSNMP, Purple Penguin, Unified Trainers, and Inner Four. He believes the biggest changes in computing are occurring in the data center and with smartphones. He has been a Cisco instructor for 15 years, starting with basic courses and now teaching Unified Computing, Nexus switching, VBLOCK, and other data center technologies. He is also focused on mobile technology; his companies have published over 1,000 apps for the iPhone and Android. John created the original Cisco Press CCNA Network simulator, the Boson Netsim, and numerous practice tests. John lives in Florida with his wife and three kids.