Introduction xxviii Chapter 1 Computer Network Fundamentals 3 Foundation Topics 4 Defining a Network 4 Networks Defined by Geography 7 Networks Defined by Topology 10 Wireless Topologies 20 Networks Defined by Resource Location 21 Real-World Case Study 24 Summary 25 Exam Preparation Tasks 25 Review Questions 26 Chapter 2 The OSI Reference Model 31 Foundation Topics 32 The Purpose of Reference Models 32 Real-World Case Study 56 Summary 57 Exam Preparation Tasks 58 Review Questions 60 Chapter 3 Network Components 63 Foundation Topics 64 Media 64 Network Infrastructure Devices 79 Specialized Network Devices 91 Virtual Network Devices 101 Voice over IP Protocols and Components 107 Real-World Case Study 108 Summary 110 Exam Preparation Tasks 110 Review Questions 113 Chapter 4 Ethernet Technology 117 Foundation Topics 118 Principles of Ethernet 118 Ethernet Switch Features 126 Real-World Case Study 145 Summary 146 Exam Preparation Tasks 146 Review Questions 148 Chapter 5 IPv4 and IPv6 Addresses 153 Foundation Topics 154 Binary Numbering 154 IPv4 Addressing 161 Assigning IPv4 Addresses 166 Subnetting 176 IP Version 6 191 Real-World Case Study 196 Summary 197 Exam Preparation Tasks 197 Review Questions 200 Chapter 6 Routing IP Packets 205 Foundation Topics 206 Basic Routing Processes 206 Sources of Routing Information 209 Routing Protocol Characteristics 213 Routing Protocol Examples 218 Address Translation 220 Multicast Routing 224 Real-World Case Study 230 Summary 231 Exam Preparation Tasks 232 Review Questions 234 Chapter 7 Wide Area Networks (WANs) 239 Foundation Topics 240 WAN Properties 240 WAN Technologies 245 Real-World Case Study 268 Summary 269 Exam Preparation Tasks 270 Review Questions 271 Chapter 8 Wireless Technologies 275 Foundation Topics 276 Introducing Wireless LANs 276 Deploying Wireless LANs 287 Securing Wireless LANs 292 Real-World Case Study 298 Summary 298 Exam Preparation Tasks 299 Review Questions 300 Chapter 9 Network Optimization 305 QoS Technologies 313 Case Study: SOHO Network Design 323 Real-World Case Study 330 Summary 331 Exam Preparation Tasks 331 Review Questions 333 Chapter 10 Command-Line Tools 337 Foundation Topics 338 Windows Commands 338 UNIX Commands 358 Real-World Case Study 371 Summary 371 Exam Preparation Tasks 371 Review Questions 374 Chapter 11 Network Management 379 Foundation Topics 380 Maintenance Tools 380 Network Documentation 390 Monitoring Resources and Reports 392 Remote Access Methods 400 Real-World Case Study 401 Summary 402 Exam Preparation Tasks 402 Additional Resources 404 Review Questions 404 Chapter 12 Network Security 409 Categories of Network Attacks 415 Defending Against Attacks 427 Remote-Access Security 439 Firewalls 442 Virtual Private Networks 447 Intrusion Detection and Prevention 454 Real-World Case Study 459 Summary 460 Exam Preparation Tasks 461 Additional Resources 463 Review Questions 463 Chapter 13 Network Policies and Best Practices 467 Foundation Topics 468 Policies 468 Best Practices 472 Real-World Case Study 475 Summary 475 Exam Preparation Tasks 476 Additional Resources 477 Review Questions 477 Chapter 14 Network Troubleshooting 481 Foundation Topics 482 Troubleshooting Basics 482 Physical Layer Troubleshooting 487 Data Link Layer Troubleshooting 490 Network Layer Troubleshooting 492 Wireless Troubleshooting 497 Specialized Networks 500 Real-World Case Study 501 Troubleshooting Scenarios 501 Summary 522 Exam Preparation Tasks 523 Additional Resources 524 Review Questions 524 Chapter 15 Final Preparation 529 Tools for Final Preparation 529 Suggested Plan for Final Review and Study 531 Strategies for Taking the Exam 533 Summary 535 Appendix A Answers to Review Questions 537 Appendix B CompTIA Network+ N10-07 Cert Guide Exam Updates 547 Glossary 551 ONLINE ELEMENTS: Appendix C Memory Tables Appendix D Memory Tables Answer Key Appendix E Study Planner Exam Essentials Interactive Study Guide Key Terms Flash Cards Application Instructional Videos Performance-Based Exercises CompTIA Network+ N10-007 Hands-on Lab Simulator Lite Software.