Autorentext

ABOUT THE AUTHORS Todd Lammle, Network+, CCSI, CCNA, CCNP, is the networking authority. Todd is President of GlobalNet System Solutions, Inc., a networking integration and training firm, and is the bestselling author of numerous titles, including the popular CompTIA Network+ Study Guide. Todd has over 900,000 copies of his books in print. He can be reached through his website at www.lammle.com. Jon Buhagiar, Network+, A+, CCNA, is Supervisor of Network Operations at Pittsburgh Technical Institute. In addition to teaching, he has been creating course content for almost 20 years.

Klappentext

Prepare for the Network+ certification and a new career in network installation and administration

In the newly revised Sixth Edition of CompTIA Network+ Study Guide: Exam N10-009, bestselling authors and network experts Todd Lammle and Jon Buhagiar deliver thorough and accurate coverage of how to install, configure, and troubleshoot today's networking hardware peripherals and protocols.

This book shows you how to succeed on the in-demand CompTIA Network+ certification exam, impress interviewers in the networking industry, and excel in your first role as a network administrator, support technician, or related position.

The accomplished authors draw on their combined 30+ years of networking experience to walk you through the ins and outs of the five functional domains covered by the Network+ Exam: N10-009: Networking concepts, implementation, operations, security, and troubleshooting. You'll also get:

• Comprehensive, domain-specific coverage of the updated Network+ Exam: N10-009 objectives
• Preparation for the leading network certification used by over 350,000 networking professionals
• Access to a superior set of online study tools, including hundreds of practice questions, flashcards, and a glossary of key terms
  Perfect for anyone preparing for the latest version of the CompTIA Network+ Exam: N10-009, the Sixth Edition of CompTIA Network+ Study Guide: Exam N10-009 is a must-have resource for network admins seeking to enhance their skillset with foundational skills endorsed by industry pros and thought leaders from around the world.

Inhalt

Introduction xxxv

Assessment Test xlvi

Chapter 1 Introduction to Networks 1

First Things First: What's a Network? 2

Physical Network Topologies 14

Topology Selection, Backbones, and Segments 22

Summary 29

Exam Essentials 29

Written Lab 30

Review Questions 31

Chapter 2 The Open Systems Interconnection (OSI) Reference Model 35

Internetworking Models 36

Introduction to Encapsulation 53

Modulation Techniques 54

Summary 55

Exam Essentials 56

Written Lab 56

Review Questions 57

Chapter 3 Networking Connectors and Wiring Standards 61

Physical Media 63

Cable Properties 82

Wiring Standards 84

Installing Wiring Distributions 92

Summary 94

Exam Essentials 95

Written Lab 95

Review Questions 97

Chapter 4 The Current Ethernet Specifications 101

Network Basics 102

Ethernet Basics 104

Ethernet at the Data Link Layer 110

Ethernet at the Physical Layer 117

Ethernet over Other Standards (IEEE 1905.1- 2013) 123

Summary 127

Exam Essentials 127

Written Lab 127

Review Questions 129

Chapter 5 Networking Devices 133

Common Network Connectivity Devices 135

Other Specialized Devices 157

Networked Devices 174

Planning and Implementing a Basic SOHO Network Using Network Segmentation 175

Summary 186

Exam Essentials 186

Written Lab 187

Review Questions 189

Chapter 6 Introduction to the Internet Protocol 193

Introducing TCP/IP 195

Data Encapsulation 230

Summary 234

Exam Essentials 235

Written Lab 236

Review Questions 237

Chapter 7 IP Addressing 241

IP Terminology 243

The Hierarchical IP Addressing Scheme 244

IPv4 Address Types 251

Internet Protocol Version 6 (IPv6) 253

Summary 263

Exam Essentials 264

Written Labs 265

Review Questions 267

Chapter 8 IP Subnetting, Troubleshooting IP, and Introduction to NAT 271

Subnetting Basics 273

Troubleshooting IP Addressing 296

Introduction to Network Address Translation (NAT) 304

Summary 309

Exam Essentials 309

Written Lab 310

Review Questions 311

Chapter 9 Introduction to IP Routing 319

Routing Basics 320

The IP Routing Process 323

Testing Your IP Routing Understanding 329

Static and Dynamic Routing 331

Summary 334

Exam Essentials 334

Written Lab 335

Review Questions 336

Chapter 10 Routing Protocols 341

Routing Protocol Basics 343

Distance- Vector Routing Protocols 347

Link- State Routing Protocols 357

High Available Routes 362

Advanced IPv6 Concepts 363

Tunneling 366

Dual Stack 369

IPv6 Routing Protocols 370

RIPng 370

EIGRPv 6 371

OSPFv 3 371

Summary 371

Exam Essentials 372

Written Lab 372

Review Questions 375

Chapter 11 Switching and Virtual LANs 379

Networking Before Layer 2 Switching 381

Switching Services 385

Spanning Tree Protocol 392

Virtual LANs 397

VLAN Trunking Protocol 409

Advanced Features of Switches 419

Summary 424

Exam Essentials 424

Written Lab 425

Review Questions 426

Chapter 12 Wireless Networking 431

Introduction to Wireless Technology 433

Cellular Technologies 436

The 802.11 Standards (Regulatory Impacts) 438

Comparing 802.11 Standards 445

Wireless Network Components 447

Site Survey 466

Providing Capacity 468

Multiple Floors 469

Location- Based WLAN 470

Site Survey Tools 470

Wireless Security 471

Summary 482

Exam Essentials 483

Written Lab 484

Review Questions 485

Chapter 13 Remote Network Access 489

Site- to- Site VPN 490

Client- to- Site VPN 491

Remote Desktop Connection 493

Virtual Network Computing 495

Connection Methods 496

Jump Box/Host 501

In- Band vs. Out- of- Band Management 502

Summary 502

Exam Essentials 502

Written Lab 503

Review Questions 504

Chapter 14 Using Statistics and Sensors to Ensure Network Availability 509

Performance Monitoring/Metrics/Sensors 511

SNMP 518

Application Programming Interface Integration 523

Protocol Analyzer/Packet Capture 524

Flow Data 525

Log Aggregation 526

Summary 532

Exam Essentials 532

Written Lab 532

Review Questions 534

Chapter 15 Organizational Documents and Policies 537

Plans and Procedures 539

Hardening and Security Policies 545

Common Documentation 554

IP Address Management 566

Common Agreements 566

Summary 568

Exam Essentials 568

Written Lab 568

Review Questions 570

Chapter 16 High Availability and Disaster Recovery 575

Load Balancing 576

Multipathing 577

Network Interface Card (NIC) Teaming 578

Redundant Hardware/Clusters 579

Facilities and Infrastructure Support 587

Redundancy and High Availability Concepts 591

Backups 600

Testing 602

Summary 603

Exam Essentials 603

Written Lab 604

Review Questions 605

Chapter 17 Data Center Architecture and Cloud Concepts 609

Cloud Computing 611

Infrastructure as Code 625

Software- Defined Networking 628

Virtual Extensible Local Area Network 633

Zero Trust Architecture 633

Secure Access Secure Edge/Security Service Edge 634

Summary 635

Exam Essentials 636

Written Lab 636

Review Questions 638

Chapter 18 Network Troubleshooting Methodology 643

Narrowing Down the Problem 646

Troubleshooting Steps 666

Troubleshooting Tips 695

Summary 699

Exam Essentials 699

Written Lab 700

Review Questions 701

Chapter 19 Network Software Tools and Commands 705

Software Tools 707

Using traceroute 712

Using ipconfig, ifconfig, and ip 715

Using the ifconfig Utility 720

Using the ip Utility 720

Using the iptables Utility 721

Using the ping Utility 722

Using the arp Utility 726

Using the nslookup Utility 729

Resolving Names with the Hosts File 731

Using the mtr Command (pathping) 7…