Data and Computer Communications, 9e, is a two-time winner of the best Computer Science and Engineering textbook of the year award from the Textbook and Academic Authors Association. It is ideal for one/two-semester courses in Computer Networks, Data Communications, and Communications Networks in CS, CIS, and Electrical Engineering departments.   With a focus on the most current technology and a convenient modular format, this best-selling text 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 in detail all the critical technical areas in data communications, wide-area networking, local area networking, and protocol design.

Table of Contents:
TABLE OF CONTENTS   Preface   Chapter 0   Reader's and Instructor's Guide          0.1          Outline of the Book          0.2          A Roadmap for Readers and Instructors          0.3          Internet and Web Resources          0.4          Standards PART ONE  OVERVIEW   Chapter 1   Data Communications, Data Networking, and the Internet          1.1          Data Communications and Networking for Today's Enterprise          1.2          A Communications Model          1.3          Data Communications          1.4          Networks          1.5          The Internet          1.6          An Example Configuration   Chapter 2   Protocol Architecture, TCP/IP, and Internet-Based Applications          2.1          The Need for a Protocol Architecture          2.2          A Simple Protocol Architecture          2.3          The TCP/IP Protocol Architecture          2.4          Standardization within a Protocol Architecture          2.5          Traditional Internet-Based Applications          2.6          Multimedia          2.7          Recommended Reading and Web Sites          2.8          Key Terms, Review Questions, and Problems          Appendix 2A The Trivial File Transfer Protocol   PART TWO  DATA COMMUNICATIONS Chapter 3   Data Transmission          3.1          Concepts and Terminology          3.2          Analog and Digital Data Transmission          3.3          Transmission Impairments          3.4          Channel Capacity          3.5          Recommended Reading and Web Site          3.6          Key Terms, Review Questions, and Problems          Appendix 3A Decibels and Signal Strength   Chapter 4   Transmission Media          4.1          Guided Transmission Media          4.2          Wireless Transmission          4.3          Wireless Propagation          4.4          Line-of-Sight Transmission          4.5          Recommended Reading and Web Sites          4.6          Key Terms, Review Questions, and Problems   Chapter 5   Signal Encoding Techniques          5.1          Digital Data, Digital Signals          5.2          Digital Data, Analog Signals          5.3          Analog Data, Digital Signals          5.4          Analog Data, Analog Signals          5.5          Recommended Reading          5.6          Key Terms, Review Questions, and Problems   Chapter 6   Digital Data Communication Techniques          6.1          Asynchronous and Synchronous Transmission          6.2          Types of Errors          6.3          Error Detection          6.4          Error Correction          6.5          Line Configurations          6.6          Recommended Reading          6.7          Key Terms, Review Questions, and Problems   Chapter 7   Data Link Control Protocols          7.1          Flow Control          7.2          Error Control          7.3          High-Level Data Link Control (HDLC)          7.4          Recommended Reading          7.5          Key Terms, Review Questions, and Problems          Appendix 7A Performance Issues   Chapter 8   Multiplexing          8.1          Frequency-Division Multiplexing          8.2          Synchronous Time-Division Multiplexing          8.3          Statistical Time-Division Multiplexing          8.4          Asymmetric Digital Subscriber Line          8.5          xDSL          8.6          Recommended Reading and Web Sites          8.7          Key Terms, Review Questions, and Problems   Chapter 9   Spread Spectrum          9.1          The Concept of Spread Spectrum          9.2          Frequency Hopping Spread Spectrum          9.3          Direct Sequence Spread Spectrum          9.4          Code-Division Multiple Access          9.5          Recommended Reading and Web Site          9.6          Key Terms, Review Questions, and Problems   PART THREE  WIDE AREA NETWORKS Chapter 10 Circuit Switching and  Packet Switching          10.1        Switched Communications Networks          10.2        Circuit Switching Networks          10.3        Circuit Switching Concepts          10.4        Softswitch Architecture          10.5        Packet-Switching Principles          10.6        Recommended Reading and Web Sites          10.7        Key Terms, Review Questions, and Problems   Chapter 11 Asynchronous Transfer Mode          11.1        The Role of ATM          11.2        Protocol Architecture          11.3        ATM Logical Connections          11.4        ATM Cells          11.5        Transmission of ATM Cells          11.6        ATM Service Categories          11.7        Recommended Reading and Web Sites          11.8        Key Terms, Review Questions, and Problems   Chapter 12 Routing in Switched Networks          12.1        Routing in Packet-Switching Networks          12.2        Examples: Routing in ARPANET          12.3        Least-Cost Algorithms          12.4        Recommended Reading          12.5        Key Terms, Review Questions, and Problems   Chapter 13 Congestion Control in Data Networks          13.1        Effects of Congestion          13.2        Congestion Control          13.3        Traffic Management          13.4        Congestion Control in Packet-Switching Networks          13.5        ATM Traffic Management          13.6        ATM-GFR Traffic Management          13.7        Recommended Reading          13.8        Key Terms, Review Questions, and Problems   Chapter 14 Cellular Wireless Networks          14.1        Principles of Cellular Networks          14.2        First-Generation Analog          14.3        Second-Generation CDMA          14.4        Third-Generation Systems          14.4        Fourth-Generation Systems          14.5        Recommended Reading and Web Sites          14.6        Key Terms, Review Questions, and Problems   PART FOUR  LOCAL AREA NETWORKS Chapter 15 Local Area Network Overview          15.1        Background          15.2        Topologies and Transmission Media          15.3        LAN Protocol Architecture          15.4        Bridges          15.5        Hubs and Switches          15.6        Virtual LANs          15.7        Recommended Reading and Web Sites          15.8        Key Terms, Review Questions, and Problems   Chapter 16 Ethernet          16.1        Traditional Ethernet          16.2        High-Speed Ethernet          16.3        IEEE 802.1Q VLAN Standard          16.4        Recommended Reading and Web Sites          16.5        Key Terms, Review Questions, and Problems          Appendix 16A Digital Signal Encoding for LANs          Appendix 16B Scrambling   Chapter 17 Wireless LANs          17.1        Overview          17.2        Wireless LAN Technology          17.3        IEEE 802.11 Architecture and Services          17.4        IEEE 802.11 Medium Access Control          17.5        IEEE 802.11Physical Layer          17.6        IEEE 802.11 Security Considerations          17.7        Recommended Reading and Web Sites          17.8        Key Terms, Review Questions, and Problems   PART FIVE  INTERNET AND TRANSPORT PROTOCOLS Chapter 18 Internetwork Protocols          18.1        Principles of Internetworking          18.2        Internet Protocol Operation          18.3        Internet Protocol          18.4        IPv6          18.5        Virtual Private Networks and IP Security          18.6        Recommended Reading and Web Sites          18.7        Key Terms, Review Questions, and Problems   Chapter 19 Internetwork Operation          19.1        Multicasting          19.2        Routing Protocols          19.3        Mobile IP          19.4        Recommended Reading and Web Sites          19.5        Key Terms, Review Questions, and Problems   Chapter 20 Internet Quality of Service          20.1        Integrated Services Architecture          20.2        Resource Reservation Protocol          20.3        Differentiated Services          20.4        Service Level Agreements          20.5        IP Performance Metrics          20.6        Recommended Reading and Web Sites          20.7        Key Terms, Review Questions, and Problems   Chapter 21 Multiprotocol Label Switching          21.1        The Role of MPLS          21.2        Background          21.3        MPLS Operation          21.4        Labels          21.5        FECs and LSPs          21.          Recommended Reading and Web Sites          21.          Key Terms, Review Questions, and Problems   Chapter 22 Transport Protocols          21.1        Connection-Oriented Transport Protocol Mechanisms          21.2        TCP          21.3        TCP Congestion Control          21.4        UDP          21.5        Recommended Reading and Web Sites          21.6        Key Terms, Review Questions, and Problems   PART SIX  NETWORK SECURITY Chapter 23 Computer and Network Security Threats       23.1     Computer Security Concepts       23.2     Threats, Attacks, and Assets       23.3     Intruders       23.4     Malicious Software Overview       23.5     Viruses, Worms, and Bots       23.6     Recommended Reading and Web Sites       23.7     Key Terms, Review Questions, and Problems   Chapter 24 Computer and Network Security Techniques       24.1     Virtual Private Networks and IPSec       24.2     SSL and TLS       24.3     Wi-Fi Protected Access       24.4     Intrusion Detection       24.5     Firewalls       24.6     Malware Defense       24.7     Recommended Reading       24.8     Key Terms, Review Questions, and Problems     APPENDICES   Appendix A - Fourier Analysis          A.1         Fourier Series Representation of Periodic Signals          A.2         Fourier Transform Representation of Aperiodic Signals          A.3         Recommended Reading Appendix B - Projects for Teaching Data and Computer Communications          B.1          Practical Exercises          B.2          Sockets Projects          B.3          Ethereal Projects          B.4          Simulation and Modeling Projects          B.5          Performance Modeling          B.6          Research Projects          B.7          Reading/Report Assignments          B.8          Writing Assignments          B.9          Discussion Topics   *ONLINE CHAPTERS*   PART SEVEN  INTERNET APPLICATIONS Chapter 25 Electronic Mail and Network Management          25.1        Electronic Mail: SMTP and MIME          25.2        Network Management: SNMP          25.3        Recommended Reading and Web Sites          25.4        Key Terms, Review Questions, and Problems   Chapter 26 Internet Directory Service and World Wide Web          26.1        Internet Directory Service: DNS          26.2        Web Access: HTTP          26.3        Recommended Reading and Web Sites          26.4        Key Terms, Review Questions, and Problems   PART EIGHT  INTERNET APPLICATIONS Chapter 27 Sockets: A Programmer's Introduction          27.1        Versions of Sockets          27.2        Sockets, Socket Descriptors, Ports, and 27onnections          27.3        The 27lient/Server Model of 27ommunication          27.4        Sockets Elements          27.5        Stream and Datagram Sockets          27.6        Run-Time Program 27ontrol          27.7        Remote Execution of a Windows 27onsole Application   Chapter 28  Frame Relay          28.1  X.25          28.2  Frame Relay          28.3  Frame Relay Congestion Control          28.4  Recommended Reading and Web Sites          28.5  Key Terms, Review Questions, and Problems   *ONLINE APPENDICES*   Appendix C - Standards Organizations C.1         The Importance of Standards C.2         Standards-Setting Organizations   Appendix D - The OSI Model D.1            The Model D.2            The OSI Layers   Appendix E - The International Reference Alphabet   Appendix F - Proof of the Sampling Theorem   Appendix G - Physical-Layer Interfacing G.1            V.24/EIA-232-F G.2            ISDN Physical Interface   Appendix H - Queuing Effects H.1            Queuing Models H.2            Queuing Results   Appendix I - ATM Adaptation Layer I.1              AAL Service I.2              AAL Protocols   Appendix J - Leaky Bucket Algorithms   Appendix K - The Spanning Tree Algorithm   Appendix L - LAN Performance Issues   Appendix M - Fibre Channel M.1         Fibre Channel Elements M.2         Fibre Channel Protocol Architecture   Appendix N - LAN Performance Issues N.1            The Effect of Propagation Delay and Transmission Rate N.2            Simple Performance Model for CSMA/CD   Appendix O - Orthogonality, Correlation, and Autocorrelation O.1            Correlation and Autocorrelation O.2            Orthogonal Codes   Appendix P - TCP/IP Example   Appendix Q - TCP/IP Checksum Q.1            Ones-Complement Addition Q.2            Use in TCP and IP   Appendix R - Cryptographic Algorithms R.1          Symmetric Encryption R.2          Public-Key Cryptography R.3          Message Authentication and Hash Functions R.4          Secure Hash Functions   Appendix M - Uniform Resource Locators (URLs) and Uniform Resource Identifiers (URIs) M.1         Uniform Resource Locator M.2         Uniform Resource Identifier M.3         To Learn More   Appendix N - Augmented Backus-Naur Form   Appendix O - Derivations of Equations and Examples   Appendix N - Glossary