CompTIA Network+ Study Guide (2026)

CompTIA Network+ Study Guide 2026 – Pass on Your First Attempt

This CompTIA Network+ study guide covers all exam domains, key concepts, and real exam-style scenarios to help you pass on your first attempt. Learn what topics matter most, avoid common mistakes, and follow a structured plan based on the official exam blueprint.

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What should you study for the CompTIA Network+ exam?

To pass the CompTIA Network+ certification exam, you should focus on:

  • Networking Concepts: Understanding networking technologies, protocols, and standards for building and managing networks.
  • Infrastructure: Understanding the physical and logical components of a network infrastructure.
  • Network Security: Understanding network security principles and practices to protect network resources.
  • Network Operations: Understanding the operational aspects of managing and monitoring network performance.
  • Troubleshooting and Tools: Identifying and resolving network issues using various tools and techniques.

The exam tests your ability to apply concepts in real scenarios, not just memorize definitions.

CompTIA Network+ Exam Syllabus and Topics

The CompTIA Network+ exam is divided into 5 domains. Each domain tests specific skills and contributes to your overall score.

Networking Concepts

Understanding networking technologies, protocols, and standards for building and managing networks.

23%
Weight
21
Questions
105
Marks

OSI Model and TCP/IP

  • OSI Model Layers
  • TCP/IP Model and Layers
  • Encapsulation and Decapsulation

Network Protocols

  • IP, TCP, UDP
  • DHCP, DNS, HTTP, HTTPS
  • Subnetting and IP Addressing

Switches and Routers

  • Function of Switches
  • Routers and Routing
  • Basic Router Configuration

Other Network Devices

  • Access Points, Hubs, and Bridges
  • Firewalls and Load Balancers

Infrastructure

Understanding the physical and logical components of a network infrastructure.

18%
Weight
16
Questions
80
Marks

Cable Types and Standards

  • Ethernet Cable Types
  • Fiber Optic Cables
  • Coaxial Cables

Network Topologies

  • Bus, Star, Mesh Topologies
  • Wired vs Wireless Network Design

Wi-Fi Standards and Frequencies

  • 802.11 Standards
  • Wi-Fi Frequencies and Channels

Wireless Network Setup

  • SSID, Encryption, and Security
  • Configuring Wireless Routers

Network Security

Understanding network security principles and practices to protect network resources.

20%
Weight
18
Questions
90
Marks

Types of Security Threats

  • Denial-of-Service (DoS) Attacks
  • Man-in-the-Middle Attacks
  • Malware, Phishing, and Ransomware

Network Security Protocols

  • IPsec, SSL/TLS, VPN
  • Firewall Configurations
  • Access Control Lists (ACL)

Authentication Methods

  • RADIUS, TACACS+
  • Two-Factor Authentication (2FA)

Network Segmentation

  • VLANs and Subnets
  • Network Access Control Lists

Network Operations

Understanding the operational aspects of managing and monitoring network performance.

17%
Weight
15
Questions
75
Marks

SNMP and Syslog

  • Simple Network Management Protocol (SNMP)
  • Syslog and Logging

Network Performance Tuning

  • Bandwidth Management
  • Latency and Jitter Troubleshooting

Cloud Computing Concepts

  • Public vs Private Cloud
  • Virtual Networks

Network Virtualization

  • Virtual LANs (VLANs)
  • Virtual Private Networks (VPN)

Troubleshooting and Tools

Identifying and resolving network issues using various tools and techniques.

22%
Weight
20
Questions
110
Marks

Identifying and Diagnosing Network Issues

  • Logical vs Physical Troubleshooting
  • Ping, Traceroute, and Other Diagnostic Tools

Common Network Issues

  • IP Address Conflicts
  • Routing Problems
  • Cable Faults

Basic Network Tools

  • Cable Tester, Loopback Plug
  • Wireshark and Packet Sniffing

Advanced Troubleshooting Tools

  • Network Analyzers
  • Bandwidth Monitors
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Learning Progress

Networking Concepts 85%
Infrastructure 92%

Practice Test Scores

95%
Latest Score
Above passing threshold

Frequently Asked Questions