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CompTIA Network+ Review Guide Exam N10-008

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  • Edition: 5th
  • Format: Paperback
  • Copyright: 2021-10-26
  • Publisher: Sybex

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Supplemental Materials

What is included with this book?


Prep for success on the Network+ N10-008 exam and for your new career in network administration with this must-have resource 

In the newly updated Fifth Edition of the CompTIA Network+ Review Guide: Exam: N10-008, a leading expert in Network Operations, Jon Buhagiar, delivers a focused and concise handbook for anyone preparing for the new Network+ N10-008 exam or for a career in network administration. 

This guide is organized into five parts, with each part corresponding to one of the 5 objective domain areas of the Network+ exam: Fundamentals, Implementations, Operations, Security, and Troubleshooting. 

You’ll handily learn crucial IT skills like designing and implementing functional networks, configuring and managing essential network devices, using switches and routers to segment network traffic, and securing existing networks. This book also allows you to: 

  • Quickly and comprehensively prepare for the Network+ N10-008 exam with intuitively organized info and efficient learning strategies 
  • Discover the skills and techniques required in an entry-level network administration interview and job 
  • Access the Sybex online learning center, with chapter review questions, full-length practice exams, hundreds of electronic flashcards, and a glossary of key terms 

Perfect as a standalone resource for those seeking to succeed on the CompTIA Network+ N10-008 exam or as a companion to the CompTIA Network+ Study Guide and CompTIA Network+ Deluxe Study Guide, this book is an indispensable reference for anyone preparing for a career in network administration, network analysis, or systems engineering.  

Author Biography


Jon Buhagiar, Network+, A+, CCNA, MCSA, MCSE, BS/ITM, is Supervisor of Network Operations at Pittsburgh Technical College. In addition to teaching, he has been creating course content for the past 20 years. Some of his more recent work can be found on YouTube http://www.youtube.com/networkedminds.

Table of Contents

Introduction xvii

Chapter 1 Domain 1.0: Networking Fundamentals 1

1.1 Compare and contrast the Open Systems Interconnection (OSI) model layers and encapsulation concepts 11

OSI Model 12

Protocol Data Units 21

Data Encapsulation and Decapsulation 22

Exam Essentials 26

1.2 Explain the characteristics of network topologies and network types 28

Wired Topologies 28

Types 33

Service-Related Entry Point 39

Virtualization 40

Virtual Networking Components 40

Service Type 43

Service Delivery 48

Exam Essentials 50

1.3 Summarize the types of cables and connectors and explain which is the appropriate type for a solution 51

Media Types 51

Connector Types 55

Transceivers 60

Media Converters 62

Characteristics of Fiber Transceivers 63

Termination Points 65

Copper Cabling Standards 70

Copper Termination Standards 73

Ethernet Deployment Standards 76

Exam Essentials 78

1.4 Given a scenario, configure a subnet and use appropriate IP addressing schemes 80

Private vs Public 80


IPv4 Concepts 84

IPv6 Concepts 88

Address Assignments 93

Subnetting 99

Virtual IP (VIP) 107

Exam Essentials 108

1.5 Explain common ports and protocols, their application, and encrypted alternatives 110

Protocols and Ports 110

IP Protocol Types 117

Connection-Oriented vs Connectionless 121

Exam Essentials 122

1.6 Explain the use and purpose of network services 123

DNS 123

DHCP Service 132

NTP 137

Exam Essentials 137

1.7 Explain basic corporate and datacenter network architecture 139

Three-Tiered Model 139

Software-Defined Networking 140

Spine and Leaf 142

Traffic Flows 143

Host Locations 144

Network Storage Types 145

Connection Type 147

Exam Essentials 150

1.8 Summarize cloud concepts and connectivity options 151

Characteristics of a Cloud 151

Cloud Delivery Models 152

Types of Services 155

Infrastructure as Code 157

Connectivity Methods 160

Multitenancy 161

Elasticity 161

Scalability 162

Security Implications/Considerations 162

Relationship Between Local and Cloud Resources 163

Exam Essentials 163

Review Questions 165

Chapter 2 Domain 2.0: Network Implementations 169

2.1 Compare and contrast various devices, their features, and their appropriate placement on the network 173

Network Devices 173

Exam Essentials 203

2.2 Compare and contrast routing technologies and bandwidth management concepts 204

Routing 204

Bandwidth Management 212

Exam Essentials 215

2.3 Given a scenario, configure and deploy common Ethernet switching features 216

Characteristics of Ethernet and IP Communications 216

Basic Switch Functions 220

Segmentation and Interface Properties 227

Switching Features 231

Exam Essentials 234

2.4 Given a scenario, install and configure the appropriate wireless standards and technologies 235

802.11 Standards 235

Frequencies 238

Wireless Considerations 239

Wireless Modes of Operation 245

Wireless Security 248

Cellular 252

Exam Essentials 254

Review Questions 256

Chapter 3 Domain 3.0: Network Operations 261

3.1 Given a scenario, use the appropriate statistics and sensors to ensure network availability 265

Performance Metrics 265

SNMP 270

Network Device Logs 274

Interface Statistics/Status 279

Interface Errors or Alerts 286

Environmental Factors and Sensors 289

Performance Baselines 291

NetFlow Data 292

Uptime/Downtime 293

Exam Essentials 294

3.2 Explain the purpose of organizational documents and policies 296

Plans and Procedures 296

Hardening and Security Policies 303

Common Documentation 307

Common Agreements 315

Exam Essentials 316

3.3 Explain high availability and disaster recovery concepts and summarize which is the best solution 318

Load Balancing 318

Multipathing 318

Network Interface Card (NIC) Teaming 320

Redundant Hardware/Clusters 320

Facilities and Infrastructure Support 326

Redundancy and High Availability (HA) Concepts 330

Backups 334

Exam Essentials 336

Review Questions 338

Chapter 4 Domain 4.0: Network Security 343

4.1 Explain common security concepts 348

Confidentiality, Integrity, Availability (CIA) 348

Threats 349

Vulnerabilities 350

Exploits 351

Least Privilege 351

Role-Based Access 352

Zero Trust 352

Defense in Depth 353

Authentication Methods 357

Security Assessments 364

Security Information and Event Management (SIEM) 366

Exam Essentials 366

4.2 Compare and contrast common types of attacks 368

Technology-Based 368

Human and Environmental 378

Exam Essentials 379

4.3 Given a scenario, apply network hardening techniques 381

Best Practices 381

Wireless Security 390

IOT Considerations 395

Exam Essentials 396

4.4 Compare and contrast remote access methods and security implications 397

VPN 397

Remote Desktop Connection 400

Remote Desktop Gateway 401

SSH 401

Virtual Network Computing (VNC) 402

Virtual Desktop 402

Authentication and Authorization Considerations 403

In-Band vs Out-of-Band Management 403

Exam Essentials 405

4.5 Explain the importance of physical security 406

Detection Methods 407

Prevention Methods 410

Asset Disposal 413

Exam Essentials 415

Review Questions 416

Chapter 5 Domain 5.0: Network Troubleshooting 421

5.1 Explain the network troubleshooting methodology 427

Identify the Problem 428

Establish a Theory of Probable Cause 430

Test the Theory to Determine the Cause 431

Establish a Plan of Action to Resolve the Problem and Identify Potential Effects 432

Implement the Solution or Escalate as Necessary 432

Verify Full System Functionality and, If Applicable, Implement Preventive Measures 433

Document Findings, Actions, Outcomes, and Lessons Learned 433

Exam Essentials 433

5.2 Given a scenario, troubleshoot common cable connectivity issues and select the appropriate tools 434

Specifications and Limitations 434

Cable Considerations 435

Cable Application 437

Common Issues 439

Common Tools 445

Exam Essentials 456

5.3 Given a scenario, use the appropriate network software tools and commands 458

Software Tools 458


Tools 466

Basic Network Platform Commands 481

Exam Essentials 485

5.4 Given a scenario, troubleshoot common wireless connectivity issues 486

Specifications and Limitations 486

Considerations 489

Common Issues 493

Exam Essentials 498

5.5 Given a scenario, troubleshoot general networking issues 499

Considerations 499

Common Issues 501

Exam Essentials 530

Review Questions 532

Appendix Answers to Review Questions 537

Chapter 1: Domain 1.0: Networking Fundamentals 538

Chapter 2: Domain 2.0: Network Implementations 541

Chapter 3: Domain 3.0: Network Operations 544

Chapter 4: Domain 4.0: Network Security 547

Chapter 5: Domain 5.0: Network Troubleshooting 550

Index 553

Supplemental Materials

What is included with this book?

The New copy of this book will include any supplemental materials advertised. Please check the title of the book to determine if it should include any access cards, study guides, lab manuals, CDs, etc.

The Used, Rental and eBook copies of this book are not guaranteed to include any supplemental materials. Typically, only the book itself is included. This is true even if the title states it includes any access cards, study guides, lab manuals, CDs, etc.

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