Thoroughly updated to reflect the CompTIA Network+ N10-006 exam, Networking Essentials, Fourth Edition is a practical, up-to-date, and hands-on guide to the basics of networking. Written from the viewpoint of a working network administrator, it requires absolutely no experience with either network concepts or day-to-day network management.
Networking Essentials, Fourth Edition guides readers from an entry-level knowledge in computer networks to advanced concepts in Ethernet and TCP/IP networks; routing protocols and router configuration; local, campus, and wide area network configuration; network security; wireless networking; optical networks; Voice over IP; the network server; and Linux networking. This new edition includes expanded coverage of mobile and cellular communications; configuring static routing with RIPv2, OSPF, EIGRP, and IS-IS; physical security, access control, and biometric access control; cloud computing and virtualization; and codes and standards.
Clear goals are outlined for each chapter, and every concept is introduced in easy to understand language that explains how and why networking technologies are used. Each chapter is packed with real-world examples and practical exercises that reinforce all concepts and guide you through using them to configure, analyze, and fix networks.
Key Pedagogical Features
NET-CHALLENGE SIMULATION SOFTWARE provides hands-on experience with entering router and switch commands, setting up functions, and configuring interfaces and protocols
WIRESHARK NETWORK PROTOCOL ANALYZER presents techniques and examples of data traffic analysis throughout
PROVEN TOOLS FOR MORE EFFECTIVE LEARNING AND NETWORK+ PREP, including chapter outlines, summaries, and Network+ objectives
WORKING EXAMPLES IN EVERY CHAPTER to reinforce key concepts and promote mastery
KEY TERM DEFINITIONS, LISTINGS, AND EXTENSIVE GLOSSARY to help you master the language of networking
QUESTIONS, PROBLEMS, AND CRITICAL THINKING QUESTIONS to help you deepen your understanding
CD-ROM includes Net-Challenge Simulation Software, including seven hands-on labs and the Wireshark Network Protocol Analyzer Software examples.
Shelving Category: Networking
Covers: CompTIA Network+
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Höhe: 261 mm
Breite: 204 mm
Dicke: 29 mm
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ISBN-13
978-0-7897-5819-4 (9780789758194)
Schweitzer Klassifikation
Jeffrey S. Beasley is a professor in the Information and Communications Technology program at New Mexico State University, where he teaches computer networking and many related topics. He is the author of Networking, Second Edition, as well as coauthor of Modern Electronic Communication, Ninth Edition, Networking Essentials 3e, and A Practical Guide to Advance Networking.
Piyasat Nilkaew is the director of Telecommunications and Networking at New Mexico State University, with more than 15 years of experience in network management and consulting. He has extensive expertise in deploying and integrating multiprotocol and multivendor data, voice, and video network solutions. He is coauthor of Networking Essentials 3e and A Practical Guide to Advance Networking.
Introduction xxi
CHAPTER 1 Introduction to Computer Networks 2
Chapter Outline 3
Objectives 3
Key Terms 3
1-1 Introduction 5
1-2 Network Topologies 7
Section 1-2 Review 12
Test Your Knowledge 12
1-3 The OSI Model 13
Section 1-3 Review 15
Test Your Knowledge 16
1-4 The Ethernet LAN 17
IP Addressing 21
Section 1-4 Review 23
Test Your Knowledge 23
1-5 Home Networking 24
Securing the Home Network 35
IP Addressing in the Home Network 36
Section 1-5 Review 38
Test Your Knowledge 39
1-6 Assembling An Office LAN 40
Section 1-6 Review 45
Test Your Knowledge 46
1-7 Testing and Troubleshooting a LAN 47
Section 1-7 Review 50
Test Your Knowledge 50
Summary 51
Questions and Problems 51
Certification Questions 60
CHAPTER 2 Physical Layer Cabling: Twisted Pair 64
CHAPTER OUTLINE 65
OBJECTIVES 65
KEY TERMS 65
2-1 Introduction 67
2-2 Structured Cabling 68
Horizontal Cabling 72
Section 2-2 Review 74
Test Your Knowledge 75
2-3 Unshielded Twisted-Pair Cable 76
Shielded Twisted-Pair Cable 78
Section 2-3 Review 79
Test Your Knowledge 79
2-4 Terminating CAT6/5E/5 UTP Cables 80
Computer Communication 82
Straight-through and Crossover Patch Cables 84
Section 2-4 Review 92
Test Your Knowledge 93
2-5 Cable Testing and Certification 94
Section 2-5 Review 98
Test Your Knowledge 98
2-6 10 Gigabit Ethernet over Copper 99
Overview 99
Alien Crosstalk 100
Signal Transmission 101
Section 2-6 Review 102
Test Your Knowledge 102
2-7 Troubleshooting Cabling Systems 103
Installation 103
Cable Stretching 104
Cable Failing to Meet Manufacturer Specifications 104
CAT5e Cable Test Examples 105
Section 2-7 Review 111
Test Your Knowledge 111
Summary 113
Questions and Problems 113
Certification Questions 122
CHAPTER 3 Physical Layer Cabling: Fiber Optics 126
Chapter Outline 127
Objectives 127
Key Terms 127
3-1 Introduction 128
3-2 The Nature of Light 131
Graded-Index Fiber 135
Single-Mode Fibers 135
Section 3-2 Review 137
Test Your Knowledge 137
3-3 Fiber Attenuation and Dispersion 137
Attenuation 138
Dispersion 139
Dispersion Compensation 140
Section 3-3 Review 141
Test Your Knowledge 141
3-4 Optical Components 142
Intermediate Components 144
Detectors 144
Fiber Connectorization 146
Section 3-4 Review 147
Test Your Knowledge 148
3-5 Optical Networking 148
Defining Optical Networking 149
Building Distribution 151
Campus Distribution 154
Section 3-5 Review 157
Test Your Knowledge 158
3-6 Safety 159
Section 3-6 Review 160
Test Your Knowledge 160
Summary 161
Questions and Problems 161
Certification Questions 164
CHAPTER 4 Wireless Networking 168
Chapter Outline 169
Objectives 169
Key Terms 169
4-1 Introduction 170
4-2 The IEEE 802.11 Wireless LAN Standard 172
Section 4-2 Review 179
Test Your Knowledge 179
4-3 802.11 Wireless Networking 180
Section 4-3 Review 189
Test Your Knowledge 190
4-4 Bluetooth, WiMAX, RFID, and Mobile Communications 190
Bluetooth 190
WiMAX 193
Radio Frequency Identification 194
Section 4-4 Review 198
Test Your Knowledge 199
4-5 Securing Wireless LANS 199
Section 4-5 Review 202
Test Your Knowledge 203
4-6 Configuring a Point-to-Multipoint Wireless LAN: A Case Study 203
1. Antenna Site Survey 204
2. Establishing a Point-to-Point Wireless Link to the Home Network 204
3-4. Configuring the Multipoint Distribution/Conducting an RF Site Survey 206
5. Configuring the Remote Installations 208
Section 4-6 Review 208
Test Your Knowledge 209
Summary 210
Questions and Problems 210
Critical Thinking 215
Certification Questions 216
CHAPTER 5 Interconnecting the LANs 218
Chapter Outline 219
Objectives 219
Key Terms 219
5-1 Introduction 220
5-2 The Network Bridge 221
Section 5-2 Review 226
Test Your Knowledge 227
5-3 The Network Switch 228
Hub-Switch Comparison 230
Managed Switches 233
Multilayer Switches 238
Section 5-3 Review 238
Test Your Knowledge 239
5-4 The Router 239
The Router Interface: Cisco 2800 Series 240
The Router Interface-Cisco 2600 Series 241
Section 5-4 Review 244
Test Your Knowledge 244
5-5 Interconnecting LANs with the Router 245
Gateway Address 247
Network Segments 247
Section 5-5 Review 248
Test Your Knowledge 248
5-6 Configuring the Network Interface-Auto-Negotiation 249
Auto-Negotiation Steps 249
Full-Duplex/Half-Duplex 250
Section 5-6 Review 252
Test Your Knowledge 252
Summary 253
Questions and Problems 253
Critical Thinking 258
Certification Questions 259
CHAPTER 6 TCP/IP 262
Chapter Outline 263
Objectives 263
Key Terms 263
6-1 Introduction 264
6-2 The TCP/IP Layers 265
The Application Layer 266
The Transport Layer 268
The Internet Layer 272
The Network Interface Layer 274
Section 6-2 Review 275
Test Your Knowledge 276
6-3 Number Conversion 276
Binary-to-Decimal Conversion 276
Decimal-to-Binary Conversion 278
Hexadecimal Numbers 280
Section 6-3 Review 283
Test Your Knowledge 283
6-4 IPv4 Addressing 283
Section 6-4 Review 287
Test Your Knowledge 287
6-5 Subnet Masks 288
Section 6-5 Review 295
Test Your Knowledge 295
6-6 CIDR Blocks 296
Section 6-6 Review 299
Test Your Knowledge 299
6-7 IPv6 Addressing 300
Section 6-7 Review 303
Test Your Knowledge 303
Summary 304
Questions and Problems 304
Critical Thinking 313
Certification Questions 314
CHAPTER 7 Introduction to Router Configuration 318
Chapter Outline 319
Objectives 319
Key Terms 319
7-1 Introduction 320
7-2 Router Fundamentals 321
Layer 3 Networks 323
Section 7-2 Review 328
Test Your Knowledge 329
7-3 The Console Port Connection 329
Configuring the HyperTerminal Software (Windows) 331
Configuring the Z-Term Serial Communications Software (Mac) 333
Section 7-3 Review 335
Test Your Knowledge 335
7-4 The Router's User EXEC Mode (Router>) 336
The User EXEC Mode 336
Router Configuration Challenge: The User EXEC Mode 339
Section 7-4 Review 342
Test Your Knowledge 342
7-5 The Router's Privileged EXEC Mode (Router#) 343
Hostname 344
Enable Secret 344
Setting the Line Console Passwords 345
Fast Ethernet Interface Configuration 346
Serial Interface Configuration 347
Router Configuration Challenge: The Privileged EXEC Mode 349
Section 7-5 Review 351
Test Your Knowledge 351
Summary 352
Questions and Problems 352
Critical Thinking 357
Certification Questions 359
CHAPTER 8 Introduction to Switch Configuration 362
Chapter Outline 363
Objectives 363
Key Terms 363
8-1 Introduction 364
8-2 Introduction to VLANs 365
Virtual LAN 366
Section 8-2 Review 367
Test Your Knowledge 367
8-3 Introduction to Switch Configuration 368
Hostname 368
Enable Secret 369
Setting the Line Console Passwords 369
Static VLAN Configuration 371
Networking Challenge-Switch Configuration 375
Section 8-3 Review 376
Test Your Knowledge 376
8-4 Spanning-Tree Protocol 377
Section 8-4 Review 379
Test Your Knowledge 379
8-5 Network Management 380
Section 8-5 Review 383
Test Your Knowledge 384
8-6 Power Over Ethernet 385
Section 8-6 Review 387
Test Your Knowledge 387
Summary 389
Questions and Problems 389
Critical Thinking 394
Certification Questions 395
CHAPTER 9 Routing Protocols 398
Chapter Outline 399
Objectives 399
Key Terms 399
9-1 Introduction 400
9-2 Static Routing 401
Gateway of Last Resort 408
Configuring Static Routes 408
Networking Challenge: Chapter 9-Static Routes 411
Section 9-2 Review 412
Test Your Knowledge 412
9-3 Dynamic Routing Protocols 413
Section 9-3 Review 414
Test Your Knowledge 415
9-4 Distance Vector Protocols 415
Section 9-4 Review 417
Test Your Knowledge 417
9-5 Configuring RIP and RIPv2 418
Configuring Routes with RIP 420
Configuring Routes with RIP Version 2 425
Networking Challenge-RIP V2 426
Section 9-5 Review 427
Test Your Knowledge 428
9-6 Link State Protocols 428
Section 9-6 Review 431
Test Your Knowledge 431
9-7 Configuring the Open Shortest Path First (OSPF) Routing Protocol 432
Networking Challenge: OSPF 437
Section 9-7 Review 437
Test Your Knowledge 438
9-8 Hybrid Protocols: Configuring the Enhanced Interior Gateway Routing Protocol (EIGRP) 438
Configuring Routes with EIGRP 439
Networking Challenge-EIGRP 443
Section 9-8 Review 444
Test Your Knowledge 445
Summary 446
Questions and Problems 446
Critical Thinking 459
Certification Questions 459
CHAPTER 10 Internet Technologies: Out to the Internet 462
Chapter Outline 463
Objectives 463
Key Terms 463
10-1 Introduction 465
10-2 The Line Connection 467
Data Channels 468
Point of Presence 470
Section 10-2 Review 472
Test Your Knowledge 472
10-3 Remote Access 473
Analog Modem Technologies 473
Cable Modems 474
xDSL Modems 474
The Remote Access Server 477
Section 10-3 Review 479
Test Your Knowledge 480
10-4 Metro Ethernet/Carrier Ethernet 480
Ethernet Service Types 482
Service Attributes 483
Section 10-4 Review 484
Test Your Knowledge 484
10-5 Network Services-DHCP and DNS 485
The DHCP Data Packets 487
DHCP Deployment 488
Network Services: DNS 489
Internet Domain Name 490
Section 10-5 Review 495
Test Your Knowledge 496
10-6 Internet Routing-BGP 496
Section 10-6 Review 499
Test Your Knowledge 499
10-7 Analyzing Internet Data Traffic 500
Utilization/Errors Strip Chart 501
Network Layer Matrix 501
Network Layer Host Table 502
Frame Size Distribution 502
Section 10-7 Review 503
Test Your Knowledge 504
Summary 505
Questions and Problems 505
Certification Questions 511
CHAPTER 11 Troubleshooting 514
Chapter Outline 515
Objectives 515
Key Terms 515
11-1 Introduction 516
11-2 Analyzing Computer Networks 518
Using Wireshark to Inspect Data Packets 518
Using Wireshark to Capture Packets 521
Section 11-2 Review 522
Test Your Knowledge 523
11-3 Analyzing Computer Networks-FTP Data Packets 523
Section 11-3 Review 524
Test Your Knowledge 524
11-4 Analyzing Campus Network Data Traffic 525
Section 11-4 Review 527
Test Your Knowledge 528
11-5 Troubleshooting the Router Interface 528
Section 11-5 Review 533
Test Your Knowledge 533
11-6 Troubleshooting the Switch Interface 533
Section 11-6 Review 537
Test Your Knowledge 537
11-7 Troubleshooting Fiber Optics-The OTDR 538
Section 11-7 Review 540
Test Your Knowledge 540
11-8 Troubleshooting Wireless Networks 540
Section 11-8 Review 542
Test Your Knowledge 543
Summary 544
Questions and Problems 544
Certification Questions 549
CHAPTER 12 Network Security 552
Chapter Outline 553
Objectives 553
Key Terms 553
12-1 Introduction 554
12-2 Intrusion (How an Attacker Gains Control of a Network) 556
Social Engineering 556
Section 12-2 Review 563
Test Your Knowledge 564
12-3 Denial of Service 564
Section 12-3 Review 566
Test Your Knowledge 567
12-4 Security Software and Hardware 567
Section 12-4 Review 578
Test Your Knowledge 579
12-5 Introduction to Virtual Private Network 579
Section 12-5 Review 588
Test Your Knowledge 589
12-6 Wireless Security 590
Section 12-6 Review 593
Test Your Knowledge 593
Summary 594
Questions and Problems 594
Critical Thinking 598
Certification Questions 599
CHAPTER 13 Cloud Computing and Virtualization 602
Chapter Outline 603
Objectives 603
Key Terms 603
13-1 Introduction 604
13-2 Virtualization 604
Setting Up Virtualization on Windows 8/10 607
Section 13-2 Review 616
Test Your Knowledge 616
13-3 Cloud Computing 616
Infrastructure as a Service (IaaS) 618
Platform as a Service (PaaS) 619
Software as a Service (SaaS) 619
Section 13-3 Review 619
Test Your Knowledge 619
Summary 620
Questions and Problems 620
Certification Questions 622
CHAPTER 14 Codes and Standards 624
Chapter Outline 625
Objectives 625
Key Terms 625
14-1 Introduction 626
14-2 Safety Standards and Codes 627
Design and Construction Requirements for Exit Routes (29 CFR 1910.36) 627
Maintenance, Safeguards, and Operational Features for Exit Routes (29 CFR 1910.37) 628
Emergency Action Plans (29 CFR 1910.38) 628
Fire Prevention Plans (29 CFR 1910.39) 629
Portable Fire Extinguishers (29 CFR 1910.157) 629
Fixed Extinguishing Systems (29 CFR 1910.160) 630
Fire Detection Systems (29 CFR 1910.164) 631
Employee Alarm Systems (29 CFR 1910.165) 632
Hazard Communication (29 CFR 1910.1200) 633
HVAC Systems 633
Door Access 633
Section 14-2 Review 634
Test Your Knowledge 634
14-3 Industry Regulatory Compliance 634
FERPA 635
FISMA 635
GLBA 635
HIPAA 635
PCI DSS 636
Section 14-3 Review 637
Test Your Knowledge 638
14-4 Business Policies and Procedures 638
Memorandum of Understanding 638
Service Level Agreement 639
Master Service Agreement 639
Statement of Work 639
Acceptable Use Policy 640
Section 14-4 Review 640
Test Your Knowledge 640
Summary 641
Questions and Problems 641
Certification Questions 644
Glossary 646
TOC, 9780789758194, 12/01/2015
