With a focus on the most current technology and a convenient modular format, this best-selling text from Pearson offers a clear and comprehensive survey of the entire data and computer communications field. Emphasizing both the fundamental principles as well as the critical role of performance in driving protocol and network design, it explores all the critical technical areas in data communications, wide-area networking, local area networking and protocol design in detail. Features1. A modular format—This structure breaks this massive subject into comprehensible parts, thus making learning easier for students.2. Unifying principles—The text repeatedly emphasizes such principles as multiplexing, flow control and error control and contrasts their application in specific areas of technology. This enables students to understand how the same protocol design principles are applied at different levels of the protocol architecture.3. Standards—A comprehensive discussion of the current status and future direction of related technology standards helps students understand the central role of standards in network and protocol design.4. More than 250 homework problems—Problems ranging in difficulty give students the opportunity to test their comprehension of concepts.5. Strong pedagogical support—The liberal use of figures and tables; glossary; recommended reading list and Websites; and a bibliography provide students with convenient study tools.Table of Contents: Chapter 1 Data Communications, Data Networks and the InternetChapter 2 Protocol Architecture, TCP/IP and Internet-Based ApplicationsChapter 3 Data TransmissionChapter 4 Transmission MediaChapter 5 Signal Encoding TechniquesChapter 6 Error Detection and CorrectionChapter 7 Data Link Control ProtocolsChapter 8 MultiplexingChapter 9 WAN Technology and ProtocolsChapter 10 Cellular Wireless NetworksChapter 11 Local Area Network OverviewChapter 12 EthernetChapter 13 Wireless LANsChapter 14 The Internet ProtocolChapter 15 Transport ProtocolsChapter 16 Advanced Data Communications TopicsChapter 17 Wireless Transmission TechniquesChapter 18 Wireless NetworksChapter 19 RoutingChapter 20 Congestion ControlChapter 21 Internetwork OperationChapter 22 Internetwork Quality of ServiceChapter 23 Multiprotocol Label SwitchingChapter 24 Electronic Mail, DNS and HTTPChapter 25 Internet Multimedia SupportChapter 26 Computer and Network Security Threats (online)Chapter 27 Computer and Network Security Techniques (online)