Eric Rivard, A+, MCSE, CCNP, CCSE, is an IT manager at Valley Center Municipal Water District. Over the past several years, he has taught professionals in both academic and industry settings topics on SCADA, Windows, networking, and IT security. Before joining Valley Center MWD, Eric was a network and security consultant in the San Diego area. He is the author of the first and second edition of the CCNA Flash Card Practice Pack. He holds a B.S. in information technology from the University of Phoenix. He lives with his wife and two children in Oceanside, CA.
Jim Doherty is currently the director of strategic marketing with Symbol Technologies. Prior to joining Symbol, Jim worked at Cisco Systems, where he led marketing campaigns for IP telephony, and routing and switching. Over the past several years, he has taught professionals in both academic and industry settings on a broad range of topics, including networking, electric circuits, statistics, and wireless communication methods. Jim is the coauthor of Cisco Networking Simplified and wrote the Study Notes section of the Cisco CCNA Exam #640-607 Flash Cards Practice Kit. Jim holds a B.S. in electrical engineering from N.C. State University and an MBA from Duke University. Jim also served in the United States Marine Corps, where he earned the rank of sergeant before leaving to pursue an education.