Tamara Dean has worked in the field of networking for nearly 20 years, most recently as a networking consultant, and before that, as the manager of Internet services and data center operations for a regional ISP. She has managed LANs at the University of Wisconsin and at a pharmaceutical firm, worked as a telecommunications analyst for the FCC, and cofounded a local radio station. Well-published in networking, she is the author of Guide to Telecommunications Technology, Network+ CoursePrep Study Guide, as well as several previous editions of Network+ Guide to Networks and CompTIA Network+ In Depth all published by Cengage Learning.