Data Communications and Networking

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Now in its Fourth Edition, this textbook brings the beginners right to the forefront of the latest advances in the field, while presenting the fundamentals in a clear and straightforward manner. Students will benefit from better coverage, improved figures and better explanations on cutting-edge material. Features Uses a bottom-up approach by teaching data communications before teaching networking. Over 900 exercise problems organized by levels of difficulty. Updated coverage with stress on newer technologies like Wireless Networking, Security and Cryptography. Strong in-text Pedagogy includes numerous figures, highlighted points, examples and real-life applications, key terms, chapter summaries, practice sets, and an extensive glossary. Table Of Contents Chapter 1 Introduction Chapter 2 Network Models Chapter 3 Data and Signals Chapter 4 Digital Transmission Chapter 5 Analog Transmission Chapter 6 Bandwidth Utilization: Multiplexing and Spreading Chapter 7 Transmission Media Chapter 8 Switching Chapter 9 Using Telephone and Cable Networks for Data Transmission Chapter 10 Error Detection and Correction Chapter 11 Data Link Control Chapter 12 Multiple Access Chapter 13 Wired LANs: Ethernet Chapter 14 Wireless LANs Chapter 15 Connecting LANs, Backbone Networks, and Virtual LANs Chapter 16 Wireless WANs: Cellular Telephone and Satellite Networks Chapter 17 SONET/SDH Chapter 18 Virtual-Circuit Networks: Frame Relay and ATM Chapter 19 Network Layer: Logical Addressing Chapter 20 Network Layer: Internet Protocol Chapter 21 Network Layer: Address Mapping, Error Reporting, and Multicasting Chapter 22 Network Layer: Delivery, Forwarding, and Routing Chapter 23 Process-to-Process Delivery: UDP, TCP, and SCTP Chapter 24 Congestion Control and Quality of Service Chapter 25 Domain Name System Chapter 26 Remote Logging, Electronic Mail, and File Transfer Chapter 27 WWW and HTTP Chapter 28 Network Management: SNMP Chapter 29 Multimedia Chapter 30 Cryptography Chapter 31 Network Security Chapter 32 Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls Appendix A Unicode Appendix B Numbering Systems Appendix C Mathematical Review Appendix D 8B/6T Code Appendix E Telephone History Appendix F Contact Addresses Appendix G RFCs Appendix H UDP and TCP Ports Acronyms Glossary References Index