Business Data Communications, 6th edition, meets the need for a clearly written and understandable overview of networking and data communications in today's businesses. With its up-to-date coverage and its blend of technical and managerial concepts, this book recognizes today's major trends and stresses the business perspective for technologies that professionals work with on a daily basis. This book begins with Internet topics before covering more traditional data communication concepts, such as voice networks, modems, LANs, WANs Internetworking technologies, network management, and network security. For network administrators, network managers, and network engineers.