网络核心：第三版

About This Book
Intended Audience
Prerequisites
AforttheCDROM
Featurs of This Book
Notes
Icons
Chapter and Appendix Overview
Finding the Best Starting Point for You
Where to Find Specific Skills in This Book
Gening Started
Hardware Requirements
Software Requirements
About the Electronic Book
The Microsoft Certified PrOfessional PrOgrarn
Microsoft Cenification Benefits
Requirements for Becondng a Microsoft Cenified Professional
Tecbocal Tndning fOr ComPuter Professionals
The NetWork+ Cenificahon Program
NetWork+Exam Objechves
Registering for the NetWork+Exam
Technical Support
Part1 Networking Fundamentals
Chapter 1 lntrouction to NetWorking
About This Chapter
Before You Begin
Lesson 1:What Is a NetWork?
The Concept of NetWorking
Introdcing Computer NetWorking
WhyUseaComputerNetWork?
The Tho Major fypes of NetWorks: LANs and WANs
Lesson Checkup
Lesson Surnmary
Lesson 2: NetWork Configuration
NetWork Configuration Overview
Peer-to-Peer NetWorks
Server Based NetWorks
Lesson Checkup
Lesson Sununary
Lesson 3: NetWork Topology
Designing a NetWork Topology
Standard Topologies
Hubs
Variahons on the Standard Topologies
Selecting a Topology
Exercise 11: Case Study Problem
Exercise 12: Troubleshoohng Problem
Exercise 13: NetWork Planning Problem
Lesson Sumrnary
Chapter Sununary
Chapter Review
Chapter 2 BasIc NetWork wela
About This Chapter
Before You Begin
Lesson 1:NetWork Cabling
Primary Cable Types
Signal Transmission
Increasing Bandwidth Performance
The IBM Cabling System
Selecting Cabling
Exercise 21: Case Study Problem
Lesson Surnmary
Lesson 2: The NetWork Interface Card
The Role of the NetWork Interface Card
Configurahon OPtions and Senings
NIC, Bus, and Cable Compatibility
NetWork Performance
SPecialized NICs
Lesson Summary
Exercise 22: Troubleshoohng Problem
Lesson 3: Wirless Networking
The Wirless Environment
rypes of Wreless NetWorks
Lesson Sununmp
Exercise 23: NetWork Planning PrOblem
Chapter Sununary
Chapter Review
Chapter 3 UnderetandIng NetWork Arehlt6cture
About This Chapter
Before You Begin
Lesson 1:AccessMethods
The Function of Access Methods
Major Access Methods
Lesson Sununary
Lesson 2: How NetWorks Send Data
The Function of Packets in NetWork Conununications
Packet Structure
Lesson Sununary
Lesson 3: Ethernet
The Origin of Etheme
Ethemet SPeCifications
Ethemt Featurs
The 10-Mbps IEEE Standards
The l00-Mbps IEEE Standards
Performance Consideraons
Lesson Surnmny
Lesson 4:Token Ring
Overview
How TOken mng NetWorking Wors
HardwareComPonents
The FutUre of TOkn mng NetWorks
Lesson Sunnnary
tesson 5:APPleTalk and ArcNet
The APPleTalk EnvirOIUnent
The AIcNet EnVirOnment
Lesson Sumrnary
Exercise 31: Case StUdy Problem
Exercise 32: TrOubleshooting Problem
Exercise 33: NetWork Planning Problem
Chapter Sununny
Chapter Review
Chapter 4 Surv6y Of NWrk OP6r8tIng Sy8tems
About This Chapter
Before You Begin
hesson 1: Introdction tO NetWork OPerating Systems
Overview
softwareComponents
Choosing a NetWork OPerating System
Lesson Checkup
Lesson Summary
Lesson 2: Novell OPerang Systems
Introduction to NetWare
NetWare Services
Interoperatrility
Lesson Checkup
Lesson Surnmary
Lesson 3: Microsoft NetWork OPerating Systems
Introduction to Windows NT
Windows NT Services
Interoperability
Lesson CheckUp
Lesson Sununary
Lesson 4: Other NetWork Operating Systems
AppleTaik NetWork OPerating System
UNIXLANs
Banyan Wal Integrated NetWork Services (Vines)
Peer-to-Peer LANs
Lesson Checkup
Lesson Sununny
Lesson 5: NetWork Operahng Systems in Multivendor Environments
TheMuihvendor Environrnent
ImPlementing Mulhvendor Solutions
Lesson Checkup
Lesson Sununary
Exercise4l: Case Study PrOblem
Chapter Sununny
Chapter Review
Chapter 5 Intboucing N6tWork Standanis
About This Chapter
Before You Begin
Lesson l: Open Systems Interconnection (OSI) Reference Model
NetWork Communications
The OSI Reference Medel
Windows NT andthe OSI Model
Exercise 5.1: Reviewing the OSI Model Layers
Lesson Sununare
Lesson 2: The IEEE 802x Standard
The 802 Proect Model
Exercise 5.2: Describing IEEE 802x Standards Categories
Lesson Sununary
Lesson 3: Device Drivers and OSI
The Role of Drivers
The NetWork Environment
NetWork Driver Interface Specification (NDIS)
OPen DataLink Interface(ODI)
Bridging NDIS and ODI
Lesson Checkup
Lesson Summary
Chapter Sununary
Chapter Review
Chapter 6 Defining NetWork Protocols
About This Chapter
Before You Begin
Lesson 1: IntrOductiontoProtOCols
The Function of Protocols
Protocols in a Layered Architecture
ImPlementing and Removing Protocols
Exercise 6.1 (a): Matching the OSI Model Rules to Layers
Exercise 6.1 (b): Matching the OSI Model Layers with
Cornmnication Tasks
Lesson Sununary
Lesson 2:TCP/IP
Introdution to TCP/IP
TCP/IP Standards
TCP/IP and OSI
Exercise 6.2: Comparing OSI and TCP/IP Layers
Lesson Summary
Lesson 3: NetWar Protocols
Introduchon to NetWar PrOtocols
Media Access PrOtocols
Intemetwork Packet Exchange and
Sequenced Packet Exchange (IPX/SPX)
Routing Information Protocol (RIP)
Service Advertising Protocol (SAP)
NetWare Core Protocol (NCP)
Exercise 6.3: Comparing the OSI Model with NetWar PrOtocols
Lesson Sununary
Lesson 4: Other Common Protocols
Network Basic InputlOutPut System (NetBIOS)
NetBEUI
X.25 PacketSwitching
Xerox NetworkSystem(XNS)
Advanced Program-to-Program Conununication (APPC)
AppleTalk
OSIProtocol Suite
DECnet
Exercise 64: Protocol Matching Problem
Lesson Sununary
Chapter Sununary
Chapter Review
Chapter 7 EIements Of NetWork ConnectIvity
About This Chapter
Before You Begin
Lesson 1: Connectivity Devices
Modem Technology
Expanding a NetWork Using ComPonents
Lesson Summary
Lesson 2: Connection Services
Carriers
WAN Overview
Sending Data Across a WAN
Lesson Sununary
Exercise 7.1: Troubleshooting Problem
Exercise 7.2: Case Study Problem
Exercise 7.3: NetWork Planning Problem
Chapter Summary
Chapter Review

PartII IMPLEMENTING a NETWORK
Chapter 8 Designing and Installing a NetWork
About This Chapter
Before You Begin
Lesson 1: Choosing a NetWork Design
Peer-to-Peer or Server Based?
Taking Inventory
Building a Map
Choosing NetWork Media
Exercise 8.1: Creating a Peerto-Peer NetWork
Lesson Sununary
Lesson 2: Establishing a ClientlServer Environment
Centralized vs CllentlServer ComPuting
Client/Server Model Overview
Advanages of Working in a CliendServer Environmnt
Exercise 8.2: Adding a NetWork Server
Lesson Sununary
Lesson 3: Working with Device Drivers and NICs
TheRole of Drivers
The NetWork Environment
Working With Drivers
Installing NICs
Exercise 8.3: Adding a Computer
Lesson Sununary
Lesson 4: Ensuring Hardware Compatibility
When Hardware Is a Problem
NetWork Hardware
Exercise 8.4: Upgrading a NetWork
Lesson Sununary
Chapter Sununary
Chapter Review
Chapter 9 EstabIlshlng NetWork Shares and Accounts
About This Chapter
Before You Begin
Lesson 1: Creating Nforork Shares
Sharing Resources On A NetWork
Sharing Disks and Files
Sharing in a Peer-to-Peer Environment
Sharing in a CliendServer NetWork
Exercise 9.1: Case StUdy PrOblem
Lesson Summary
Lesson 2: Establishing and Managing NetWork Accounts
NetWork Accounts
AdIninistrating Accounts in a Windows NT EnvirOnrnent
AdIninistrating Accounts in an APple EnviroIunnt
Adndnistrating Accounts in a NetWar EnvirOnment
Adrinistrating Accounts in a UNIX Environment
Exercise 92: Case StUdy Problem
Lesson Surnmare
Chapter SuIIUnary
Chapter Review
Chapter 10 EnsurIng NetWork Security
About This Chapter
Before You Begin
Lesson 1: Making NetWorks Secure
Planning forNetWork Security
Security Models
Security EnhancementS
Computer Vmises
Lesson CheckUp
Lesson Sununary
Lesson 2: Maintalning a Healthy NetWork Environment
Computers and the Environment
Creating the mght Environment
LessonCheckUp
LessonSurnmary
Lesson 3: Avoiding Data Loss
DataPrOtection
TaPe Backup
Unintermphble Power Supply (UPS)
Fault-Tolerant Systems
Optical Drives and Disks
Disaster Recovery
Lesson Sununary
Exercise 10.1: Case StUdy PrOblem
Chapter Summary
Chapter Review
Chapter 11 Printing on a NetWork
About This Chapter
Before You Begin
Lesson 1: NetWork Printing
The NetWork Printing PrOcess
Exercise 11.1: Term Definihon Review
Lesson Summary
Lesson 2: Managing a Shared Printer
Printer Management
Lesson Checkup
Lesson Sununary
Lesson 3: Sharing Fax Modems
Fax Modem Overview
Routing Faxes
Fax Server Enhancements
Lesson Checkup
Lesson Summary
Chapter Sununary
Chapter Review
Chapter 12 Administering Change
About this Chapter
Before You Begin
Lesson 1: Documenting a Running NetWork
Documentation
Establishing a Baseline
Documenting NetWork Performance
Other Software Tools
Bottlenecks
Documenting Server Performance
Total System Management
Maintaining a NetWork History
Lesson Checkup
Lesson Summary
Lesson 2: Upgrading a NetWork
Overview
Deciding to Upgrade a NetWork
The Server
The Workstation
The NetWork Interface Card (NIC)
NetWork Media
Upgrading the Routers, Brouters, Bridges, and Repeaters
Exercise 12.1: Case Study Problem
Lesson Summary
Lesson 3: Moving a NetWork
Planning the Move
Making the Move
Verifying the NetWork After the Move
Exercise 12.2: Case Study Problem
Lesson Sununary
Chapter Sununary
Chapter Review
Chapter 13 TroubIeshooting a NetWork
About This Chapter
Before You Begin
Lesson 1: Understanding the Problem
Troubleshooting
Segmenting the Problem
Isolating the Problem
Seulng Priorihes
Exercise 13.1: Troubleshoohng Problem
Lesson Summare
Lesson 2: Troubleshooting Tools
Hardware Tools
Software Tools
Monitoring and Troubleshoohng Tools
Lesson Checkup
Lesson Sununary
Lesson 3:Where to Find Help
Network Support Resources
TechNet
Bulletin Board System (BBS)
UserGroups
Periodicals
The Intemet: A Woridwide Resource
Lesson Checkup
Lesson Sununary
Chapter Summary
Chapter Review

Part Ill Appendlxes and GIossary
Appendix A QueStions and Answers
Appendix B Common NetWork Standards and Specitications
Glossary
Index