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Sean Odom has been in the IT industry for more than 14 years. In that time he has been an IT consultant for such companies as Network Design Associates, Wells Fargo Bank, CH2M Hill, Intel, Payne Webber, Lincoln National Life, and many more. He has written or coauthored more than 16 best-selling industry certification books. In addition, he has been a technical contributor to countless books and white papers. Sean has also been a Cisco instructor for Globalnet Training Solutions and is currently the president of the Sacramento/Placer County Cisco Users Group.