Data Communications and Computer Network

Australia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United States

S E V E N T H E D I T I O N

Data Communications and Computer Networks A Business User’s Approach

Curt M. White DePaul University

Australia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United States

Data Communications and Computer Networks: A Business User’s Approach, Seventh Edition Curt M. White

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Library of Congress Control Number: 2011942796

ISBN 13: 978-1-133-62646-6

ISBN 10: 1-133-62646-7

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ISBN 13: 978-1-133-62721-0

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To Kathleen, Hannah Colleen, and Samuel Memphis—it’s never boring

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Brief Contents

PREFACE xv

1 Introduction to Computer Networks and Data Communications 1

2 Fundamentals of Data and Signals 29 3 Conducted and Wireless Media 63 4 Making Connections 103 5 Making Connections Efficient:

Multiplexing and Compression 121 6 Errors, Error Detection, and Error Control 149 7 Local Area Networks: Part 1 175 8 Local Area Networks: Part II 207 9 Introduction to Metropolitan Area

Networks and Wide Area Networks 241 10 The Internet 269 11 Voice and Data Delivery Networks 307 12 Network Security 339 13 Network Design and Management 373

GLOSSARY 401

INDEX 415

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Contents

PREFACE xv

1 Introduction to Computer Networks and Data Communications 1 The Language of Computer Networks 3 The Big Picture of Networks 4 Communications Networks—Basic Layouts 5

Microcomputer-to-local area network layouts 6 Microcomputer-to-Internet layouts 7 Local area network-to-local area network layouts 7 Personal area network-to-workstation layouts 8 Local area network-to-metropolitan area network layouts 9 Local area network-to-wide area network layouts 9 Wide area network-to-wide area network layouts 10 Sensor-to-local area network layouts 10 Satellite and microwave layouts 11 Cell phone layouts 11 Terminal/microcomputer-to-mainframe computer layouts 12

Convergence 13 Network Architectures 14

The TCP/IP protocol suite 15 The OSI model 18 Logical and physical connections 20

Network Layouts in Action 22 The TCP/IP Protocol Suite in Action 23 Summary 24 Key Terms 26 Review Questions 26 Exercises 26 Thinking Outside the Box 27 Hands-On Projects 27

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