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Title:
Introduction to cisco networking technologies : CCNA self-study
Publication Information:
New York, NY : Cisco Pr., 2004
ISBN:
9781587051616
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30000010106607 QA76.3 I57 2004 Open Access Book Book
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Summary

Summary

Cisco authorized self-study book for CCNA fundamentals

Prepare for the CCNA INTRO exam 640-821 or CCNA exam 640-801 with a Cisco authorized self-study guide. You'll learn how to:

Describe the basic components of a PC, the OSI model, and fundamental networking concepts and terminology Create a simple Ethernet network and describe the components and functions of an Ethernet LAN Determine the most appropriate network topology for typical user requirements Describe issues related to shared LANs, add hubs and switches to expand an Ethernet LAN, and optimize LANs Define how networks can be connected by routing protocols and how data is transmitted via routed networks Test the connectivity between hosts on a routed network Construct a network addressing scheme with subnet mask computations Compare UDP to TCP and explain the functions of both protocols in communicating with sites not on an Ethernet LAN Define major WAN access technologies Verify the default configuration of Cisco IOS devices Use Cisco IOS commands to determine network operational status and performance

CCNA Self-Study: Introduction to Cisco Networking Technologies (INTRO) is a Cisco authorized, self-paced learning tool for fundamental CCNA knowledge. This book helps you become literate in the basics of internetworking, TCP/IP, and the use of Cisco IOS Software on Cisco switches and routers. An excellent introduction to computer networking, this book addresses fundamental terms and concepts as well as basic procedures for working with the Cisco command-line interface (CLI) to configure and operate Cisco IOS devices.

Designed as a self-study guide for the INTRO component of the CCNA exam, this comprehensive tutorial imparts important knowledge and skills necessary to describe and identify major network and WAN components along with their functions and purposes. This book covers topics on network types, network media, switching fundamentals, TCP/IP, IP addressing and routing, WAN technologies, operating and configuring Cisco IOS devices, and managing network environments. Divided into three core parts, this book covers internetworking basics, internetworking layers, and administering Cisco devices. Each chapter ends with extensive review questions to test your knowledge acquisition.

Full of detailed information and easy-to-grasp tutorials, CCNA Self-Study: Introduction to Cisco Networking Technologies (INTRO) presents fundamental internetworking terms, concepts, and components and shows you how to apply this information to configure basic network connectivity via serial and LAN networks using PCs, hubs, routers, and switches. Whether you are studying to become CCNA certified or are simply seeking to gain a better understanding of networking fundamentals using the Open Systems Interconnection (OSI) seven layer model, you will benefit from the information presented in this book.

CCNA Self-Study: Introduction to Cisco Networking Technologies (INTRO) is part of a recommended learning path from Cisco Systems that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining.

This volume is in the Certification Self-Study Series offered by Cisco Press. Books in this series provide officially developed training solutions to help networking professionals understand technology implementations and prepare for the Cisco Career Certifications examinations.


Author Notes

Steve McQuerry, CCIE No. 6108, is an instructor, technical writer, and internetworking consultant with more than 10 years of networking industry experience


Reviews 1

Library Journal Review

Cisco remains the leader in networking technologies, and updated guides are sure to find a steady readership. CCNA is a Cisco-authorized self-study guide to the INTRO CCNA (Cisco Certified Network Associate) exam, the first of the two-part basic level of Cisco certification; it will also assist anyone managing a network using Cisco products. It moves from a general introduction to internetworking through operating and configuring Cisco IOS (Internetwork Operation System) network devices. Each chapter includes quizzes, summaries, and review questions. A solid test-prep book for a popular exam; appropriate for medium and larger libraries. Beginner's Guide gives those new to internetworking a clear and useful grounding in the fundamentals; coverage is broader than in titles that teach to the test. Some readers may move on to more formal study guides (the authors do provide a nice overview of the various Cisco certifications); others may just need enough of the basics to speak their net administrator's language or manage a small network. Recommended for all libraries. (c) Copyright 2010. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted. All rights reserved.


Table of Contents

Forewordp. xviii
Introductionp. xix
Part I Internetworking Basicsp. 3
Chapter 1 Introduction to Internetworkingp. 5
Network Computing Basicsp. 5
Personal Computer Componentsp. 6
CPU and Memoryp. 6
Storage Devicesp. 8
Expansion Busp. 9
Input and Output Devicesp. 10
Laptop Versus PCp. 10
Network Interface Cardsp. 11
Network Computing Basics Section Quizp. 13
Computer Numbering Systemsp. 14
Computing Measurement Termsp. 15
Decimal-to-Binary Conversionp. 16
Binary-to-Decimal Conversionp. 20
Hexadecimal Conversionsp. 23
Hexadecimal-to-Binary Conversionp. 25
Computer Numbering Systems Section Quizp. 26
Internetworking Fundamentalsp. 27
Basic Internetworking Terminologyp. 27
Networking Applicationsp. 29
Internetworking Fundamentals Section Quizp. 30
Principles of Data Communicationsp. 31
OSI Modelp. 32
Layer 7 The Application Layerp. 34
Layer 6 The Presentation Layerp. 34
Layer 5 The Session Layerp. 34
Layer 4 The Transport Layerp. 35
Layer 3 The Network Layerp. 35
Layer 2 The Data Link Layerp. 35
Layer 1 The Physical Layerp. 35
Data Communications Processp. 36
Encapsulationp. 37
De-Encapsulationp. 38
Peer-to-Peer Communicationp. 39
TCP/IP Protocol Stackp. 40
OSI Model Versus TCP/IP Stackp. 41
Principles of Data Communication Section Quizp. 42
Chapter Summaryp. 43
Chapter Review Questionsp. 43
Chapter 2 Internetworking Devicesp. 47
Defining Network Componentsp. 47
Mapping Business Needs to a Hierarchical Modelp. 49
Access Layerp. 50
Distribution Layerp. 51
Core Layerp. 51
Physical Network Versus Logical Networkp. 52
Busp. 52
Star and Extended Starp. 53
Ringp. 54
Mesh and Partial Meshp. 54
Network Topology Section Quizp. 55
Functions of Internetworking Devicesp. 56
Physical Layer Functionsp. 56
Physical Media and Connectorsp. 57
Collision and Broadcast Domainsp. 59
Layer 1 Devicesp. 59
Data Link Layer Functionsp. 62
MAC Sublayer Framesp. 63
LLC Sublayer Framesp. 64
Layer 2 Class of Servicesp. 65
Data Link Layer Devicesp. 66
Network Layer Functionsp. 69
Network Layer Addressesp. 70
Layer 3 Quality of Service Markingp. 72
Router Operation at the Network Layerp. 73
Transport Layer Functionsp. 75
Multilayer Devicesp. 76
Mapping Devices to Layers and the Hierarchical Modelp. 76
Services Devicesp. 77
Functions of Internetwork Devices Section Quizp. 79
Chapter Summaryp. 81
Chapter Review Questionsp. 81
Chapter 3 Common Types of Networksp. 85
LANs Overviewp. 85
Ethernetp. 87
Fast Ethernetp. 90
Gigabit Ethernetp. 91
LANs Overview Section Quizp. 93
WANs Overviewp. 94
WAN Devicesp. 96
WAN Service Providers and Signaling Standardsp. 98
WAN Physical Layer Protocolsp. 100
WAN Data Link Layer Protocolsp. 102
MANs Overviewp. 103
Global Internetp. 104
WANs Overview Section Quizp. 105
Services Networksp. 106
SANsp. 106
CNsp. 108
VPNsp. 109
Intranets and Extranetsp. 111
Services Networks Section Quizp. 112
Chapter Summaryp. 114
Chapter Review Questionsp. 114
Part II The Internetworking Layersp. 119
Chapter 4 Network Media (The Physical Layer)p. 121
Cabling and Infrastructurep. 121
Twisted-Pair Cablep. 121
Coaxial Cablep. 123
Fiber-Optic Cablep. 125
Wireless Communicationsp. 126
Comparing Media Typesp. 128
Cabling and Infrastructure Section Quizp. 129
Choosing LAN Cabling Optionsp. 130
LAN Physical Layerp. 131
Ethernet in the Campusp. 131
Ethernet Media and Connector Requirementsp. 133
Connection Mediap. 133
UTP Implementationp. 136
LAN Cabling Options Section Quizp. 140
Understanding WAN Cablingp. 141
WAN Physical Layerp. 141
WAN Serial Connectionsp. 142
Serial Connectionsp. 143
ISDN BRI Connectionsp. 146
DSL Connectionsp. 147
Cable Connectionsp. 147
Asynchronous Router Connectionsp. 148
Console Port Connectionsp. 148
Auxiliary Connectionsp. 149
Understanding WAN Cabling Section Reviewp. 150
Chapter Summaryp. 151
Chapter Review Questionsp. 151
Chapter 5 Layer 2 Switching Fundamentals (The Data Link Layer)p. 155
Understanding Shared Ethernet Technologiesp. 155
Properties of Ethernet Segmentsp. 155
Communications Within the Segmentp. 157
Collision Domainsp. 158
Consuming Bandwidthp. 159
Limitations of Shared Networksp. 160
Understanding Shared Ethernet Technologies Section Quizp. 160
Bridged and Switched Ethernetp. 162
Bridges in LANsp. 162
Layer 2 Switchesp. 163
Identifying Switching Featuresp. 164
Categorizing Switches by Bandwidthp. 165
Categorizing Switches by Layer Functionalityp. 166
Switching Framesp. 167
Flooding the Networkp. 168
Loops in a Switched Networkp. 168
Preventing Loopsp. 170
Bridged and Switched Ethernet Section Quizp. 170
Virtual LANsp. 173
Defining a VLANp. 173
Identifying VLAN Benefitsp. 174
Identifying VLAN Componentsp. 175
Establishing VLAN Membershipp. 176
Communicating Between VLANsp. 176
Virtual LAN Section Quizp. 177
Chapter Summaryp. 178
Chapter Review Questionsp. 179
Chapter 6 TCP/IP (The Transport and Internetworking Layer Protocol)p. 185
IP Internet Layer Overviewp. 186
IPp. 187
Internet Control Message Protocolp. 191
Address Resolution Protocolp. 192
Reverse Address Resolution Protocolp. 195
Dynamic Host Configuration Protocolp. 195
IP Internet Layer Overview Section Quizp. 197
The Transport Layerp. 199
TCP/IP Applicationsp. 202
Transport Layer Functionalityp. 202
TCP/UDP Header Formatp. 205
How TCP and UDP Use Port Numbersp. 208
Establishing a TCP Connection: The Three-Way Handshakep. 210
Flow Control for TCP/UDPp. 213
Transport Layer Section Quizp. 214
Chapter Summaryp. 218
Chapter Review Questionsp. 218
Chapter 7 IP Addressing and Routing (The Internetworking Layer)p. 227
IP Network Addressingp. 227
IP Address Classesp. 229
Network and Broadcast Addressesp. 232
Public and Private IP Addressesp. 235
Address Exhaustionp. 236
IP Network Addressing Section Quizp. 240
IP Subnettingp. 242
Subnet Addressesp. 243
Subnet Masksp. 244
Broadcastsp. 247
Identifying IP Addressesp. 249
Subnet Planningp. 251
IP Subnetting Section Quizp. 253
Routing Basicsp. 255
Routing Tablesp. 258
Design Goals of Routing Protocolsp. 259
Routing Metricsp. 260
Routing Basics Section Quizp. 262
Routing Protocolsp. 263
Overview of Routing Protocol Categoriesp. 265
Distance Vector Routing Protocolsp. 265
Link-State Routing Protocolsp. 266
Hybrid Routing Protocolsp. 268
RIPv1 and RIPv2p. 269
IGRPp. 270
EIGRPp. 271
OSPFp. 271
BGPp. 272
Routing Protocols Section Quizp. 273
Chapter Summaryp. 275
Chapter Review Questionsp. 275
Part III Administering Cisco Devicesp. 283
Chapter 8 Using WAN Technologiesp. 285
WAN Technology Basicsp. 285
Circuit Switchingp. 286
Packet Switchingp. 287
Point to Pointp. 287
Bandwidthp. 288
Multiplexingp. 289
WAN Technology Basics Section Quizp. 291
WAN Access Technologiesp. 293
PPPp. 293
HDLCp. 294
ISDNp. 295
DSLp. 296
Frame Relayp. 299
ATM and Cell Switchingp. 301
SONETp. 302
WAN Access Technologies Section Quizp. 303
Modemsp. 305
Analog Modemsp. 305
Cable Modemsp. 306
How Cable Modems Workp. 307
Advantages and Disadvantages of Cable Modemsp. 308
Modems Section Quizp. 309
Chapter Summaryp. 310
Chapter Review Questionsp. 310
Chapter 9 Operating and Configuring Cisco IOS Devicesp. 315
Basic Operation of the Cisco IOS Softwarep. 315
Cisco IOS Startupp. 316
Configuration Sourcesp. 316
Using the Cisco IOS CLIp. 318
Keyboard Help in Device CLIp. 320
Context-Sensitive Help for Cisco IOS Devicesp. 321
Console Error Messages for Cisco IOS Devicesp. 321
Command History Buffer for Cisco IOS Devicesp. 322
Using CLI Help Features Examplep. 323
Enhanced Editing Mode: Editing Key Functionsp. 324
Cisco IOS Configuration Methodsp. 326
Basic Operation of the Cisco IOS Software Section Quizp. 327
Booting a Cisco IOS Devicep. 332
Starting a Cisco Catalyst IOS Switchp. 332
Starting a Cisco IOS Routerp. 337
Booting a Cisco IOS Device Section Quizp. 343
Configuring a Switch from the Command Linep. 345
Configuring a Switch from the Command Line Section Quizp. 350
Configuring a Router from the Command Linep. 351
Additional Console Commandsp. 354
Configuring Router Interfacesp. 355
Configuring a Router from the Command Line Section Quizp. 361
Managing Configuration Changesp. 362
Managing Configuration Changes Section Quizp. 365
Chapter Summaryp. 365
Chapter Review Questionsp. 366
Chapter 10 Managing Your Network Environmentp. 377
Getting Information About Neighboring Devicesp. 377
Displaying General Information About Neighboring Devicesp. 379
Displaying CDP Information About a Devicep. 379
Displaying CDP Information About Neighboring Devicesp. 380
Displaying Detailed CDP Information About Neighboring Devicesp. 381
Displaying Information About Device Trafficp. 382
Displaying Configuration Information and Interface Status for a Devicep. 383
Creating a Network Map of the Environmentp. 383
Getting Information About Neighboring Devices Section Quizp. 384
Getting Information About Remote Devicesp. 387
Establishing a Telnet Session to a Remote Devicep. 387
Verifying and Displaying Active Telnet Sessionsp. 388
Suspending, Re-Establishing, and Ending Active Telnet Sessionsp. 389
Documenting the Network with the ping and traceroute Commandsp. 390
Getting Information About Remote Devices Section Quizp. 393
Router Booting Sequence and Verification Commandsp. 395
Router Booting Sequencep. 395
Router Componentsp. 396
ROM Microcodep. 396
Loading/Running the Router Configurationp. 401
Managing Router Configurations with copy Commandsp. 402
Router Booting Sequence and Verification Commands Section Quizp. 405
Cisco IOS File System and Devicesp. 407
Moving and Managing Router Configuration Filesp. 408
Managing IOS Imagesp. 409
Backing Up Your IOS Image Filep. 410
Loading a New IOS Image File from the Network Serverp. 411
Executing Adds, Moves, and Changesp. 412
Using debug on Operational Cisco Devicesp. 414
Cisco IOS File System and Devices Section Quizp. 417
Chapter Summaryp. 419
Chapter Review Questionsp. 420
Part IV Appendixesp. 433
Appendix A Answers to the Chapter Review Questions and Quizzesp. 435
Glossaryp. 477
Indexp. 495