Network+ Exam Domains

Master all five domains of the CompTIA Network+ N10-009 certification exam with our comprehensive 2025 study materials. Each domain includes expert-crafted content, official RFC links, practical examples, and hands-on exercises to build your networking expertise from fundamentals to advanced troubleshooting.

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1.0 Networking Concepts

23% of Exam

Build your foundation with core networking principles including the OSI 7-layer model, network appliances and devices, cloud computing concepts, TCP/UDP protocols, services, and IPv4/IPv6 addressing schemes. Essential knowledge for network professionals and IT specialists.

Key Topics:

OSI Model Network Appliances Cloud Concepts Protocols & Services Transmission Media Network Topologies IPv4 Addressing
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2.0 Network Implementation

20% of Exam

Learn to configure and deploy network infrastructure including dynamic routing protocols (OSPF, BGP, EIGRP), switching features and VLANs, wireless 802.11 technologies, network services (DHCP, DNS), and enterprise WAN implementations. Hands-on skills for network engineers and administrators.

Key Topics:

Routing Protocols Switching & VLANs Wireless Standards Network Services WAN Technologies Network Devices
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3.0 Network Operations

19% of Exam

Understand network monitoring tools and techniques, maintenance procedures, performance optimization, high availability concepts, comprehensive documentation practices, change management processes, and disaster recovery planning. Critical skills for network operations centers (NOC) and IT infrastructure management.

Key Topics:

Network Monitoring Performance Metrics High Availability Documentation Change Management Disaster Recovery
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4.0 Network Security

14% of Exam

Protect networks from modern cyber threats with comprehensive security principles, threat identification and analysis, network hardening techniques, secure remote access solutions (VPN, SSH), physical security measures, and network segmentation strategies. Essential cybersecurity knowledge for network security professionals.

Key Topics:

Security Principles Network Attacks Hardening Techniques Remote Access Physical Security Network Segmentation
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5.0 Network Troubleshooting

24% of Exam

Master systematic troubleshooting methodology and problem resolution techniques using command-line tools (ping, traceroute, netstat, nslookup), network analyzers, cable testing equipment, and diagnostic procedures for effective network maintenance. Advanced troubleshooting skills essential for network technicians and support specialists.

Key Topics:

Troubleshooting Methodology Command Line Tools Network Issues Cable Testing Wireless Troubleshooting Performance Issues
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📋 Exam Information

Everything you need to know about the CompTIA Network+ N10-009 certification exam

90 Questions
90 Minutes
720 Passing Score (100-900 scale)
$358 Exam Cost (USD)
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🎯 Study Tips & Strategy

Proven strategies to help you succeed on the Network+ certification exam

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Create a Study Schedule

Dedicate 40-60 hours over 8-10 weeks. Focus on one domain at a time, spending more time on higher-weighted domains like Troubleshooting (24%) and Networking Concepts (23%).

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Hands-On Practice

Use network simulators like Packet Tracer, GNS3, or EVE-NG to practice configurations. Real-world experience with routers, switches, and troubleshooting tools is invaluable.

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Memorize Key Information

Learn common port numbers, OSI model layers, cable standards, and troubleshooting methodology. Create flashcards for quick reference and daily review.

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Practice Tests

Take multiple practice exams to identify weak areas and get familiar with question formats. Aim for consistent scores of 85%+ before scheduling your exam.

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Focus on Simulation Questions

Network+ includes performance-based questions (PBQs). Practice configuring VLANs, ACLs, wireless settings, and troubleshooting scenarios in realistic environments.

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Use Multiple Resources

Combine study guides, video courses, official CompTIA materials, and hands-on labs. Different perspectives help reinforce complex concepts and fill knowledge gaps.