| 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 |
|
