About the Book
Competency-based learning for the academic
classroom
Developed for academic courses, NETWORK+
CERTIFICATION, Second Edition, helps students build the skills they need
on the job and for the CompTIA Network+ certification exam. The textbook
delivers courseware adaptable for a full 16-week semester or a 6-week,
8-week, or 10-week course. The book is filled with competency-based practice
exercises that students complete on their own; the companion lab manual
features additional skill-building activities ideal for your classroom’s
computer lab.
Along with the textbook and lab manual,
students get a Student CD-ROM containing study aids; an electronic version
of the textbook; Microsoft Encyclopedia of Networking, Second Edition,
eBook; and information on how to begin a career in information technology.
They also get a 120-day evaluation version of Microsoft® Windows®
2000 Server software.
An Instructor CD-ROM containing a complete
set of instructor support materials—including lecture outlines, teaching
tips, Microsoft PowerPoint® slides, a test bank, and detailed lab setup
instructions—is also available.
Related Books
MCSE Training Kit (Exam 70-219): Designing a Microsoft® Windows® 2000 Directory Services Infrastructure
MCSE Microsoft® Windows® 2000 Professional Readiness Review; Exam 70-210
MCSE Training Kit (Exam 70-220): Designing Microsoft® Windows® 2000 Network Security
Table of Contents
About This Book
xv
Intended Audience xv
Prerequisites xv
About The CD-ROM xvi
Features of This Book xvi
Notes xvi
Conventions xvii
Notational Conventions xvii
Keyboard Conventions xviii
Chapter and Appendix Overview xviii
Finding the Best Starting Point For You xx
Getting Started xxviii
Hardware Requirements xxviii
Software Requirements xxviii
The Network+ Certification Program xxix
Benefits of Certification xxix
The Network+ Exam xxx
Registering for the Network+ Exam xxx
Preparing for the Network+ Exam xxxi
Taking the Network+ Exam xxxii
CHAPTER 1
Networking Basics 1
About This Chapter 1
Lesson 1: Network Communications 2
Signals and Protocols 2
Protocol Interaction 4
Local Area Networks and Wide Area Networks 6
Broadband and Baseband 7
Half-Duplex and Full-Duplex Communications 8
Segments and Backbones 9
Client/Server and Peer-to-Peer Networking 11
Exercise 1.1: Networking Definitions 12
Lesson 2: The OSI Reference Model 13
Data Encapsulation 14
The Physical Layer 15
The Data-Link Layer 16
The Network Layer 19
The Transport Layer 22
The Session Layer 23
The Presentation Layer 24
The Application Layer 24
Exercise 1.2: OSI Model Layers 25
Chapter Summary 26
Chapter Review 27
CHAPTER 2
Network Hardware 29
About This Chapter 29
Lesson 1: Network Cables 30
Cable Topologies 30
Cable Types 34
Exercise 2.1: Network Cable Types 38
Lesson 2: Network Interface Adapters 39
Understanding Network Interface Adapter Functions 40
Installing a NIC 41
Configuring a Network Interface Adapter 42
Installing Network Interface Adapter Drivers 44
Troubleshooting a Network Interface Adapter 45
Exercise 2.2: Network Adapter Functions 46
Lesson 3: Network Hubs 47
Understanding Ethernet Hubs 47
Understanding Token Ring MAUs 49
Exercise 2.3: Network Hub Functions 51
Chapter Summary 52
Chapter Review 53
CHAPTER 3
Network Connections 55
About This Chapter 55
Lesson 1: Bridging 56
Connecting Local Area Networks with a Bridge 56
Bridge Types 60
Exercise 3.1: Bridge Functions 61
Lesson 2: Switching 63
Installing Switches 64
Switch Types 66
Exercise 3.2: Switch Functions 67
Lesson 3: Routing 69
Packet Routing 70
Routing to the Internet 73
Understanding Routing Tables 73
Routing Metrics 74
Router Types 74
Exercise 3.3: Routing Functions 75
Chapter Summary 77
Chapter Review 78
CHAPTER 4
Networking Software 81
About This Chapter 81
Before You Begin 81
Lesson 1: Network Operating Systems 82
Windows NT and Windows 2000 82
Novell NetWare 85
UNIX 88
Exercise 4.1: Network Operating System Products 90
Lesson 2: Network Clients 91
Windows Clients 91
Installing Windows Networking Components 93
NetWare Clients 95
Exercise 4.2: Network Client Concepts 97
Lesson 3: Directory Services 99
The NetWare Bindery 99
Novell Directory Services 100
Windows NT Domains 102
Active Directory 104
Exercise 4.3: Directory Service Concepts 106
Chapter Summary 107
Chapter Review 108
CHAPTER 5
Data-Link Layer Protocols 111
About This Chapter 111
Before You Begin 111
Lesson 1: Ethernet 112
Ethernet Standards 112
Physical Layer Specifications 113
The Ethernet Frame 119
CSMA/CD 122
Exercise 5.1: CSMA/CD Procedures 125
Lesson 2: Token Ring 126
Physical Layer Specifications 126
Token Passing 128
Token Ring Frames 129
Exercise 5.2: Ethernet Standards and Technologies 131
Exercise 5.3: Selecting a Data-Link Layer Protocol 132
Lesson 3: SLIP and PPP 133
SLIP 133
PPP 134
Exercise 5.4: PPP Connection Establishment 136
Chapter Summary 137
Chapter Review 138
CHAPTER 6
Network Layer Protocols 141
About This Chapter 141
Before You Begin 141
Lesson 1: IP 142
The IP Standard 143
IP Functions 143
Exercise 6.1: IP Header Properties 150
Lesson 2: IPX 151
The IPX Header 152
IPX Addressing 153
Exercise 6.2: IPX Properties 154
Lesson 3: NetBEUI 155
NetBIOS Naming 156
The NetBEUI Frame 156
Exercise 6.3: NBF Protocols 161
Chapter Summary 162
Chapter Review 163
CHAPTER 7
Transport Layer Protocols 165
About This Chapter 165
Before You Begin 165
Lesson 1: TCP and UDP 166
TCP 166
UDP 178
Exercise 7.1: TCP Header Fields 179
Lesson 2: SPX and NCP 180
SPX 180
NCP 181
Chapter Summary 184
Chapter Review 185
CHAPTER 8
TCP/IP Fundamentals 187
About This Chapter 187
Before You Begin 187
Lesson 1: TCP/IP Protocols 188
TCP/IP Layers 189
SLIP and PPP 190
ARP 191
IP 193
ICMP 194
TCP and UDP 198
Application Layer Protocols 198
Exercise 8.1: TCP/IP Layers and Protocols 199
Lesson 2: IP Addressing 200
IP Address Assignments 201
IP Address Classes 201
Subnet Masking 203
Registered and Unregistered Addresses 205
Exercise 8.2: Variable-Length Subnetting 205
Chapter Summary 206
Chapter Review 207
CHAPTER 9
TCP/IP Routing 209
About This Chapter 209
Before You Begin 209
Lesson 1: Routing Principles 210
Understanding Routing 210
Routers and Brouters 211
Routing Tables 212
Exercise 9.1: Routing Tables 216
Lesson 2: Building Routing Tables 217
Static and Dynamic Routing 217
Creating a Static Route 218
Dynamic Routing 221
Exercise 9.2: Static and Dynamic Routing 226
Chapter Summary 227
Chapter Review 228
CHAPTER 10
TCP/IP Applications 231
About This Chapter 231
Before You Begin 231
Lesson 1: TCP/IP Services 232
DHCP 232
Exercise 10.1: DHCP Message Types 241
Host Files 241
DNS 242
WINS 248
Lesson 2: TCP/IP Utilities 249
Ping 249
Traceroute 250
Ifconfig and Ipconfig.exe 252
ARP 253
Netstat 254
Nbtstat.exe 255
Telnet 256
FTP 257
Exercise 10.2: TCP/IP Utilities 257
Chapter Summary 258
Chapter Review 259
CHAPTER 11
TCP/IP Configuration 261
About This Chapter 261
Before You Begin 261
Lesson 1: Installing the TCP/IP Protocols 262
Exercise 11.1: Microsoft TCP/IP Client Components 266
Lesson 2: Configuring TCP/IP 267
Configuring Basic TCP/IP Properties 267
Configuring Advanced TCP/IP Properties 271
Exercise 11.2: TCP/IP Configuration Requirements 277
Chapter Summary 278
Chapter Review 279
CHAPTER 12
Remote Network Access 281
About This Chapter 281
Before You Begin 281
Lesson 1: Using Remote Connections 282
Connection Types 282
Remote Connection Requirements 292
Exercise 12.1: Remote Connection Technologies 293
Chapter Summary 294
Chapter Review 295
CHAPTER 13
Network Security 297
About This Chapter 297
Before You Begin 297
Lesson 1: Password Protection 298
User Account Password Settings 299
Specifying Password Lengths 300
Setting Password Change Intervals 301
Enforcing Password Complexity 302
Controlling Password Encryption 303
Setting Account Lockout Policies 304
Exercise 13.1: Password Policies 305
Lesson 2: Security Models 306
User-Level Security 306
Share-Level Security 308
Exercise 13.2: Security Levels 309
Lesson 3: Firewalls 310
Packet Filtering 311
NAT 312
Proxy Servers 313
Chapter Summary 315
Chapter Review 316
CHAPTER 14
Planning the Network 319
About This Chapter 319
Before You Begin 319
Lesson 1: Determining Network Needs 320
Evaluating Business Requirements 320
Evaluating the Installation Site 321
Selecting Hardware 324
Lesson 2: Providing Fault Tolerance 325
Data Availability 325
Server Availability 327
Network Redundancy 328
Exercise 14.1: Data Availability Technologies 330
Lesson 3: Collecting Essential Information 331
Standardizing Workstation Configurations 331
Selecting TCP/IP Parameters 332
Creating Accounts 333
Chapter Summary 335
Chapter Review 336
CHAPTER 15
Installing a Network 337
About This Chapter 337
Before You Begin 337
Lesson 1: Pulling Cable 338
External Installations 338
Internal Installations 348
Securing Cables 352
Dropping Cables 352
Pulling Other Cable Types 354
Moving On 355
Exercise 15.1: Internal and External Cabling 355
Lesson 2: Making Connections 356
Two-Computer Networking 356
Connecting External Cables 359
Connecting Internal Cables 360
Exercise 15.2: Cable Installation Tools 367
Chapter Summary 368
Chapter Review 369
CHAPTER 16
Network Maintenance 371
About This Chapter 371
Before You Begin 371
Lesson 1: Backups 372
Backup Hardware 372
Backup Software 377
Exercise 16.1: Incremental and Differential Backups 386
Lesson 2: Anti-Virus Policies 387
Preventing Virus Infections 390
Exercise 16.2: Virus Types 391
Lesson 3: Patches and Updates 392
Major Updates 392
Patches 394
Driver Updates 394
Software Upgrades 395
Chapter Summary 396
Chapter Review 397
CHAPTER 17
Network Troubleshooting Procedures 399
About This Chapter 399
Before You Begin 399
Lesson 1: Identifying Network Components 400
Recognizing Computer Ports 400
Recognizing Network Components 410
Exercise 17.1: Ports and Connectors 416
Lesson 2: Troubleshooting a Network 417
Identifying the Problem 417
Duplicating the Problem 419
Isolating the Problem 419
Resolving the Problem 420
Testing the Solution 421
Documenting the Problem 421
Giving Feedback 421
Exercise 17.2: Network Troubleshooting 422
Chapter Summary 423
Chapter Review 424
CHAPTER 18
Network Troubleshooting Tools 427
About This Chapter 427
Before You Begin 427
Lesson 1: Documentation and Resources 428
Product Documentation 428
Telephone Support 430
Online Resources 431
CD-ROM Resources 437
Books and Periodicals 438
Exercise 18.1: Technical Resources 438
Lesson 2: Logs and Indicators 439
Power and Drive Lights 439
Link Pulse Lights 439
Error Displays 442
Event Logs 443
Network Management Products 447
Performance Monitors 448
Protocol Analyzers 451
Exercise 18.2: Network Indicators 459
Lesson 3: Network Testing and Monitoring Tools 460
Crossover Cables 460
Hardware Loopback Connectors 460
Tone Generators and Tone Locators 461
Wire Map Testers 462
Multifunction Cable Testers 463
Exercise 18.3: Network Testing Equipment 465
Chapter Summary 466
Chapter Review 467
CHAPTER 19
Network Troubleshooting Scenarios 469
About This Chapter 469
Before You Begin 469
Lesson 1: "I Can’t Access a Web Site" 470
Incident Administration 470
Gathering Information 471
Possible Cause: Internet Router Problem 472
Possible Cause: Internet Communication Problem 476
Possible Cause: DNS Failure 477
Possible Cause: LAN Communication Problem 482
Possible Cause: Computer Configuration 488
Possible Cause: User Error 493
Exercise 19.1: Network Hardware Problems 494
Chapter Summary 495
Chapter Review 496
APPENDIX A
Questions and Answers 499
GLOSSARY
571
INDEX
615 |
