Real-World, Practical Learning Because of the author's extensive research with network administrators and published data on what technologies firms actually use, Business Data Communications and Networking, Third Edition focuses on what students really need to know in today's networking jobs, such as LAN switching, security, and quality of service (QoS). The Right Information Right When You Need It This uniquely flexible textbook has a novel design. Its twelve core chapters cover key networking concepts, with less basic material placed in boxes. To provide additional flexibility, instructors who wish to emphasize particular areas in more detail can incorporate material from the book's eight advanced modules into the course. www.prenhall.com/panko In addition to the flexibility provided by the textbook's unique design, the text is accompanies by an author-driven companion Web site that provides resources for students and instructors including PowerPoint presentations, case studies, Internet Exercises, instructor's manual download, and other important resources tightly linked to the chapters. New to this Edition Business Data Communications and Networking, Third Edition includes twelve core chapters instead of the second edition's eight. At the request of adopters and other reviewers, the author divided several of the longer core chapters from the second edition into two chapters in the third edition. The basic flow remains the same, although there are changes in emphasis in response to market trends and adopter comments. Technologies come and go rapidly in networking, and although the book covers general networking principles, it illustrates them using the latest technologies. Updating these technologies results in the greatest portion of changes from the second to third edition. In addition to these updates, the author has expanded coverage of and emphasis on topics such as Quality of Service; LAN Switching; Product Selection, Procurement, and Cost Analysis; Security; Windows Networking Setup; Wireless Communication and New Access Devices; Web-Enabled Database Access; Frame Relay; and Systems Administration.Panko, Raymond R. is the author of 'Business Data Communications and Networking' with ISBN 9780130882622 and ISBN 0130882623.