The U.S. Dept of Labor forecasts an increase of 58% in the network and system support job market by 2016. This book functions as a quick self-teaching course for IT professionals migrating over to the network side of a company. Not highly technical, exclusive to engineers, or related to a specific certification, the coverage provides both basic and advanced knowledge. Networking technologies, including the hardware, software, transmission media, and data transfer processes, are thoroughly covered, along with operating systems and systems software; LANs, WANs, and MANs; and the interactions of network components.