About the Book
Competency-based learning for the academic
classroom.
Developed for academic courses, NETWORKING
ESSENTIALS PLUS, THIRD EDITION, helps students build the skills they need
on the job and for professional certification—including the new CompTIA
Network+ credential. The textbook delivers official Microsoft® curriculum
adaptable for either a full 16-week semester or a 6-, 8-, or 10-week course.
Thoroughly updated with new topics and improved organization, NETWORKING
ESSENTIALS PLUS, THIRD EDITION, serves as the ideal foundation for your
school’s networking specialist program. The coverage is now operating-system
independent so students can better prepare for a wide range of networking
technologies. Each book is filled with competency-based practice exercises
that students complete on their own, while the companion lab manual features
additional skill-building activities ideal for your classroom’s computer
lab.
Along with the textbook, students receive
a lab manual and a Student CD-ROM containing study aids, all-new simulation
video clips that demonstrate common procedures, and detailed information
on how to begin a career in Information Technology.
An Instructor CD-ROM containing a complete
set of instructor support materials—including lecture outlines, dozens
of new teaching tips, PowerPoint® slides, and test banks—is also available.
Related Books
ALS Designing a Microsoft® Windows®
2000 Directory Services Infrastructure
ALS Microsoft® Windows® 2000 Server
ALS Microsoft® Windows® 2000 Network
Infrastructure Administration
Table of Contents
About This Book
xv
Intended
Audience xv
Prerequisites xv
About
the CD-ROM xvi
Features
of This Book xvi
Notes xvii
Icons xvii
Chapter
and Appendix Overview xvii
Finding
the Best Starting Point for You xxi
Where to Find Specific Skills in This Book xxi
Getting
Started xxx
Hardware Requirements xxx
Software Requirements xxx
About
the Online Book xxx
The Microsoft
Certified Professional Program xxx
Microsoft Certification Benefits xxxii
Requirements for Becoming a Microsoft Certified Professional xxxiii
Technical Training for Computer Professionals xxxiv
The Network+
Certification Program xxxiv
Network+ Exam Objectives xxxv
Registering for the Network+ Exam Objectives xxxvi
Technical Support xxxvi
PART I NETWORKING FUNDAMENTALS
CHAPTER 1 Introduction
to Networking 3
About This Chapter 3
Before You Begin 3
Lesson
1: What Is a Network? 4
The Concept of Networking 4
Introducing Computer Networking 5
Why Use a Computer Network? 7
The Two Major Types of Networks: LANs and WANs 10
Lesson Checkup 11
Lesson Summary 11
Lesson
2: Network Configuration 12
Network Configuration Overview 12
Peer-to-Peer Networks 15
Server-Based Networks 18
Lesson Checkup 22
Lesson Summary 22
Lesson
3: Network Topology 23
Designing a Network Topology 23
Standard Topologies 24
Hubs 32
Variations on the Standard Topologies 35
Selecting a Topology 37
Exercise 1.1: Case Study Problem 38
Exercise 1.2: Troubleshooting Problem 39
Exercise 1.3: Network Planning Problem 41
Lesson Summary 45
Chapter
Summary 46
Chapter
Review 48
CHAPTER 2 Basic Network Media
49
About This Chapter 49
Before You Begin 49
Lesson
1: Network Cabling 50
Primary Cable Types 50
Signal Transmission 63
Increasing Bandwidth Performance 65
The IBM Cabling System 66
Selecting Cabling 68
Exercise 2.1: Case Study Problem 70
Lesson Summary 72
Lesson
2: The Network Interface Card 73
The Role of the Network Interface Card 73
Configuration Options and Settings 76
NIC, Bus, and Cable Compatibility 80
Network Performance 84
Specialized NICs 85
Lesson Summary 87
Exercise 2.2: Troubleshooting Problem 87
Lesson
3: Wireless Networking 89
The Wireless Environment 89
Types of Wireless Networks 90
Lesson Summary 96
Exercise 2.3: Network Planning Problem 97
Chapter
Summary 101
Chapter
Review 103
CHAPTER 3 Understanding Network
Architecture 107
About This Chapter 107
Before You Begin 107
Lesson
1: Access Methods 108
The Function of Access Methods 108
Major Access Methods 109
Lesson Summary 116
Lesson
2: How Networks Send Data 117
The Function of Packets in Network Communications 117
Packet Structure 119
Lesson Summary 124
Lesson
3: Ethernet 125
The Origin of Ethernet 125
Ethernet Specifications 126
Ethernet Features 126
The 10-Mbps IEEE Standards 128
The 100-Mbps IEEE Standards 136
Performance Considerations 138
Lesson Summary 139
Lesson
4: Token Ring 141
Overview 141
How Token Ring Networking Works 144
Hardware Components 146
The Future of Token Ring Networks 150
Lesson Summary 151
Lesson
5: AppleTalk and ArcNet 152
The AppleTalk Environment 152
The ArcNet Environment 156
Lesson Summary 158
Exercise 3.1: Case Study Problem 159
Exercise 3.2: Troubleshooting Problem 161
Exercise 3.3: Network Planning Problem 162
Chapter
Summary 166
Chapter
Review 170
CHAPTER 4 Survey of Network Operating
Systems 173
About This Chapter 173
Before You Begin 173
Lesson
1: Introduction to Network Operating Systems 174
Overview 174
Software Components 176
Choosing a Network Operating System 180
Lesson Checkup 182
Lesson Summary 182
Lesson
2: Novell Operating Systems 183
Introduction to NetWare 183
NetWare Services 184
Interoperability 185
Lesson Checkup 186
Lesson Summary 186
Lesson
3: Microsoft Network Operating Systems 187
Introduction to Windows NT 187
Windows NT Services 188
Interoperability 189
Lesson Checkup 190
Lesson Summary 190
Lesson
4: Other Network Operating Systems 191
AppleTalk Network Operating System 191
UNIX LANs 192
Banyan Virtual Integrated Network Services (Vines) 192
Peer-to-Peer LANs 193
Lesson Checkup 194
Lesson Summary 194
Lesson
5: Network Operating Systems in Multivendor Environments 195
The Multivendor Environment 195
Implementing Multivendor Solutions 196
Lesson Checkup 201
Lesson Summary 201
Exercise 4.1: Case Study Problem 202
Chapter
Summary 203
Chapter
Review 205
CHAPTER 5 Introducing Network
Standards 207
About This Chapter 207
Before You Begin 207
Lesson
1: Open Systems Interconnection (OSI) Model 208
Network Communications 208
The OSI Model 209
Windows NT and the OSI Model 216
Exercise 5.1: Reviewing the OSI Model Layers 219
Lesson Summary 220
Lesson
2: The IEEE 802.x Standard 221
The 802 Project Model 221
Exercise 5.2: Describing IEEE 802.x Standards Categories 224
Lesson Summary 224
Lesson
3: Device Drivers and OSI 225
The Role of Drivers 225
The Network Environment 226
Network Driver Interface Specification (NDIS) 227
Open Data-Link Interface (ODI) 228
Bridging NDIS and ODI 228
Lesson Checkup 228
Lesson Summary 228
Chapter
Summary 229
Chapter
Review 230
CHAPTER 6 Defining Network Protocols
233
About This Chapter 233
Before You Begin 233
Lesson
1: Introduction to Protocols 234
The Function of Protocols 234
Protocols in a Layered Architecture 236
Implementing and Removing Protocols 243
Exercise 6.1 (a) 243
Exercise 6.1 (b) 243
Lesson Summary 244
Lesson
2: TCP/IP 245
Introduction to TCP/IP 245
TCP/IP Standards 246
TCP/IP and OSI 247
Exercise 6.2 250
Lesson Summary 251
Lesson
3: NetWare Protocols 252
Introduction to NetWare Protocols 252
Media Access Protocols 253
Internetwork Packet Exchange and Sequenced Packet Exchange (IPX/SPX) 253
Routing Information Protocol (RIP) 254
Service Advertising Protocol (SAP) 254
NetWare Core Protocol (NCP) 255
Exercise 6.3 255
Lesson Summary 256
Lesson
4: Other Common Protocols 257
Network Basic Input/Output System (NetBIOS) 257
NetBEUI 258
X.25 Packet Switching 258
Xerox Network System (XNS) 259
Advanced Program-to-Program Communication (APPC) 259
AppleTalk 259
OSI Protocol Suite 261
DECnet 261
Lesson Summary 261
Exercise 6.4 262
Chapter
Summary 263
Chapter
Review 265
CHAPTER 7 Elements of Network
Connectivity 267
About This Chapter 267
Before You Begin 267
Lesson
1: Connectivity Devices 268
Modem Technology 268
Expanding a Network Using Components 277
Lesson Summary 296
Lesson
2: Connection Services 297
Carriers 297
WAN Overview 301
Sending Data Across a WAN 309
Lesson
Summary 321
Exercise 7.1: Troubleshooting Problem 322
Exercise 7.2: Case Study Problem 323
Exercise 7.3: Network Planning Problem 324
Chapter
Summary 330
Chapter
Review 332
PART II IMPLEMENTING A NETWORK
CHAPTER 8 Designing
and Installing a Network 339
About This Chapter 339
Before You Begin 339
Lesson
1: Choosing a Network Design 340
Peer-to-Peer or Server Based? 340
Taking Inventory 344
Building a Map 346
Choosing Network Media 348
Exercise 8.1 351
Lesson Summary 353
Lesson
2: Establishing a Client/Server Environment 354
Centralized vs. Client/Server Computing 354
Client/Server Model Overview 355
Advantages of Working in a Client/Server Environment 361
Exercise 8.2 362
Lesson Summary 362
Lesson
3: Working with Device Drivers and NICs 363
The Role of Drivers 363
The Network Environment 364
Working With Drivers 365
Installing NICs 368
Exercise 8.3 370
Lesson Summary 370
Lesson
4: Ensuring Hardware Compatibility 371
When Hardware Is a Problem 371
Network Hardware 373
Exercise 8.4 373
Lesson Summary 373
Chapter
Summary 374
Chapter
Review 376
CHAPTER 9 Establishing Network
Shares and Accounts 377
About This Chapter 377
Before You Begin 377
Lesson
1: Creating Network Shares 378
Sharing Resources On A Network 378
Sharing Disks and Files 378
Sharing in a Peer-to-Peer Environment 379
Sharing in a Client/Server Network 386
Exercise 9.1 387
Lesson Summary 387
Lesson
2: Establishing and Managing Network Accounts 388
Network Accounts 388
Administrating Accounts in a Windows NT Environment 392
Administrating Accounts in an Apple Environment 398
Administrating Accounts in a NetWare Environment 399
Administrating Accounts in a UNIX Environment 400
Exercise 9.2 401
Lesson Summary 401
Chapter
Summary 402
Chapter
Review 404
CHAPTER 10 Ensuring Network Security
405
About This Chapter 405
Before You Begin 405
Lesson
1: Making Networks Secure 406
Planning for Network Security 406
Security Models 409
Security Enhancements 413
Computer Viruses 416
Lesson Checkup 419
Lesson Summary 419
Lesson
2: Maintaining a Healthy Network Environment 420
Computers and the Environment 420
Creating the Right Environment 422
Lesson Checkup 426
Lesson Summary 426
Lesson
3: Avoiding Data Loss 427
Data Protection 427
Tape Backup 428
Uninterruptible Power Supply (UPS) 431
Fault-tolerant Systems 433
Optical Drives and Disks 437
Disaster Recovery 439
Lesson Summary 440
Exercise 10.1 440
Chapter
Summary 441
Chapter
Review 443
CHAPTER 11 Printing on a Network
445
About This Chapter 445
Before You Begin 445
Lesson
1: Network Printing 446
The Network Printing Process 446
Exercise 11.1: Term Definition Review 449
Lesson Summary 453
Lesson
2: Managing a Shared Printer 450
Printer Management 450
Lesson Checkup 453
Lesson Summary 453
Lesson
3: Sharing Fax Modems 454
Sharing Fax Modems 454
Routing Faxes 454
Fax Server Enhancements 455
Lesson Checkup 455
Lesson Summary 455
Chapter
Summary 456
Chapter
Review 457
CHAPTER 12 Administering Change
459
About this Chapter 459
Before You Begin 459
Lesson
1: Documenting a Running Network 460
Documentation 460
Establishing a Baseline 461
Documenting Network Performance 463
Bottlenecks 465
Documenting Server Performance 466
Total System Management 466
Maintaining a Network History 469
Lesson Checkup 470
Lesson Summary 470
Lesson
2: Upgrading a Network 471
Overview 471
Deciding to Upgrade a Network 472
The Server 474
The Workstation 477
The Network Interface Card (NIC) 478
Network Media 479
Upgrading the Routers, Brouters, Bridges, and Repeaters 480
Exercise 12.1: Case Study Problem 480
Lesson Summary 481
Lesson
3: Moving a Network 482
Planning the Move 483
Making the Move 483
Verifying the Network After the Move 484
Exercise 12.2: Case Study Problem 486
Lesson Summary 486
Chapter
Summary 487
Chapter
Review 489
CHAPTER 13 Troubleshooting a
Network 491
About This Chapter 491
Before You Begin 491
Lesson
1: Understanding the Problem 492
Troubleshooting 492
Segmenting the Problem 496
Isolating the Problem 497
Setting Priorities 497
Exercise 13.1: Troubleshooting Problem 498
Lesson Summary 498
Lesson
2: Troubleshooting Tools 499
Hardware Tools 499
Software Tools 501
Monitoring and Troubleshooting Tools 503
Lesson Summary 506
Lesson
3: Where to Find Help 507
Network Support Resources 507
TechNet 508
Bulletin Board Services (BBS) 509
User Groups 509
Periodicals 509
The Internet: A Worldwide Resource 509
Lesson Checkup 518
Lesson Summary 519
Chapter Summary 519
Chapter Review 521
Appendix A
Questions and Answers 525
Appendix B
Common Network Standards and Specifications 589
Glossary 599
Index |
