CompTIA Network+ Practice Tests

Introduction xiii

Chapter 1 Networking Concepts 1

1.1 Explain concepts related to the Open Systems Interconnection (OSI) reference model 8

1.2 Compare and contrast networking appliances, applications, and functions 15

1.3 Summarize cloud concepts and connectivity options 25

1.4 Explain common networking ports, protocols, services, and traffic types 29

1.5 Compare and contrast transmission media and transceivers 37

1.6 Compare and contrast network topologies, architectures, and types 48

1.7 Given a scenario, use appropriate IPv4 network addressing 53

1.8 Summarize evolving use cases for modern network environments 59

Chapter 2 Network Implementation 63

2.1 Explain characteristics of routing technologies 66

2.2 Given a scenario, configure switching technologies and features 73

2.3 Given a scenario, select and configure wireless devices and technologies 83

2.4 Explain important factors of physical installations 94

Chapter 3 Network Operations 103

3.1 Explain the purpose of organizational processes and procedures 108

3.2 Given a scenario, use network monitoring technologies 118

3.3 Explain disaster recovery (DR) concepts 124

3.4 Given a scenario, implement IPv4 and IPv 6 network services 131

3.5 Compare and contrast network access and management methods 138

Chapter 4 Network Security 145

4.1 Explain the importance of basic network security concepts 148

4.2 Summarize various types of attacks and their impact to the network 160

4.3 Given a scenario, apply network security features, defense techniques, and solutions 167

Chapter 5 Network Troubleshooting 177

5.1 Explain the troubleshooting methodology 181

5.2 Given a scenario, troubleshoot common cabling and physical interface issues 187

5.3 Given a scenario, troubleshoot common issues with network services 201

5.4 Given a scenario, troubleshoot common performance issues 211

5.5 Given a scenario, use the appropriate tool or protocol to solve networking issues 219

Chapter 6 Practice Test 1 241

Chapter 7 Practice Test 2 267

Appendix Answers to Review Questions 293

Chapter 1: Networking Concepts 294

Chapter 2: Network Implementation 328

Chapter 3: Network Operations 351

Chapter 4: Network Security 375

Chapter 5: Network Troubleshooting 396

Chapter 6: Practice Test 1 428

Chapter 7: Practice Test 2 443

Index 457