CompTIA Network+ is the benchmark entry-level networking certification — and the N10-009 version, released in 2024, is the most practically focused version yet. If you are working towards a role in network administration, IT support, or infrastructure, this certification is one of the most valuable things you can put on your CV.
This guide covers everything you need to know to pass: the exam structure, all five domains, a realistic study plan, and how to use practice exams effectively in the final weeks.
What Is the CompTIA Network+ N10-009?
The Network+ N10-009 is a vendor-neutral certification that validates your ability to design, configure, manage, and troubleshoot wired and wireless networks. It is aimed at IT professionals with around 9–12 months of networking experience, though many candidates pass with less if they study systematically.
Exam details:
- Up to 90 questions (multiple-choice and performance-based)
- 90-minute time limit
- Passing score: 720 out of 900
- Available at Pearson VUE test centres and online proctored
The Five N10-009 Exam Domains
CompTIA weights the N10-009 across five domains. Understanding the weighting helps you prioritise your study time.
Domain 1: Networking Concepts (23%)
The largest domain covers the foundational knowledge that underpins everything else: the OSI model, TCP/IP suite, common ports and protocols, network topologies, and cloud networking concepts. If you are new to networking, spend extra time here — it is the foundation for every other domain.
Key topics: OSI layers and their functions, IPv4 and IPv6 addressing and subnetting, TCP vs UDP, DNS, DHCP, HTTP/S, FTP, SSH, VLAN concepts, cloud service models (IaaS, PaaS, SaaS).
Domain 2: Network Implementation (19%)
This domain tests your ability to implement routing and switching technologies, wireless standards, and network services. Expect questions on configuring VLANs, understanding 802.11 wireless standards, and deploying common network services.
Key topics: Routing protocols (OSPF, BGP basics), switching concepts (STP, port security), wireless standards (802.11a/b/g/n/ac/ax), DHCP configuration, NAT/PAT, VPN types.
Domain 3: Network Operations (17%)
Network Operations focuses on monitoring, managing, and optimising networks. This is where documentation, change management, and network monitoring tools come in.
Key topics: Network documentation (diagrams, IP address management), monitoring tools (SNMP, NetFlow, syslog), performance metrics, change management processes, backup and recovery.
Domain 4: Network Security (20%)
Security has grown in importance with each Network+ revision. This domain covers physical security, network hardening, and common attack types — with a practical focus on what a network administrator actually does to protect infrastructure.
Key topics: Common network attacks (DDoS, MITM, ARP poisoning), firewall types and placement, IDS/IPS, network access control (802.1X), VPN protocols, physical security controls, hardening techniques.
Domain 5: Network Troubleshooting (21%)
The second-largest domain and the most practical. You will be tested on your ability to apply a structured troubleshooting methodology and diagnose common network problems — including performance-based questions that simulate real scenarios.
Key topics: CompTIA's troubleshooting methodology, cable and connectivity issues, wireless troubleshooting, switching and routing problems, network service failures (DNS, DHCP), using tools (ping, traceroute, nslookup, netstat, Wireshark).
A 10-Week Study Plan
This plan assumes roughly 8–10 hours of study per week. Adjust based on your existing networking knowledge.
Weeks 1–2: Networking Concepts (Domain 1) Work through the OSI model until you can recite all seven layers and their functions without prompting. Practise subnetting — this comes up repeatedly and is worth dedicated time. Use flashcards for ports and protocols.
Weeks 3–4: Network Implementation (Domain 2) Focus on wireless standards and routing/switching concepts. Set up a home lab if possible — even a cheap managed switch and a wireless router will help you understand VLANs and routing in practice.
Weeks 5–6: Network Security (Domain 4) Read through attack types and defence mechanisms. The N10-009 has increased the security weighting, so do not underestimate this domain. Understand the difference between IDS and IPS, and know your VPN protocols.
Week 7: Network Operations (Domain 3) This is the most process-heavy domain. Focus on documentation standards, SNMP, and change management. It is less conceptually difficult than the other domains but easy to neglect.
Week 8: Network Troubleshooting (Domain 5) Work through troubleshooting scenarios. The performance-based questions in this domain are where many candidates lose marks — practise applying the troubleshooting methodology systematically rather than jumping to conclusions.
Weeks 9–10: Practice Exams and Weak Area Review This is where full mock exams become essential. Take a complete timed exam, review your domain scores, and spend the remaining study time on your weakest areas. Aim to take at least three full mock exams before your real exam date.
How to Use Practice Exams Effectively
Practice exams serve two distinct purposes, and most candidates only use them for one.
Purpose 1: Knowledge testing. Taking a practice exam tells you what you know and what you do not. This is the obvious use — but it only works if you read every explanation, including for questions you got right. You may have answered correctly for the wrong reason.
Purpose 2: Exam simulation. The N10-009 is a timed exam with performance-based questions. If you have never sat a 90-question exam under time pressure, the real thing will feel very different from your practice sessions. Taking full timed mock exams — not just question banks — trains your pacing and builds the mental stamina to stay focused for 90 minutes.
ICT Exam Academy's Network+ practice exams include five full 90-minute mock exams with domain-level scoring. After each exam, you can see exactly which of the five domains you are weakest in — which tells you precisely where to focus your remaining study time.
Common Mistakes to Avoid
Skipping subnetting practice. Subnetting questions appear in multiple domains and are often performance-based. If you cannot subnet quickly and accurately, you will lose marks you cannot afford to lose.
Memorising answers instead of understanding concepts. The N10-009 uses scenario-based questions that require you to apply knowledge, not recall it. If you are using a question bank and memorising which answer is correct without understanding why, you are not preparing for the real exam.
Neglecting performance-based questions. Many candidates focus entirely on multiple-choice questions and are caught off guard by the simulation items. Make sure your practice material includes scenario and drag-and-drop style questions.
Underestimating the security domain. Domain 4 has grown with each revision. Treat it with the same seriousness as Networking Concepts.
Is Network+ Worth It in 2026?
Yes — particularly in the UK, where CompTIA certifications are increasingly recognised by employers as a reliable baseline. Network+ is vendor-neutral, which means it is valued across organisations using Cisco, Juniper, HP, or any other networking vendor.
For roles in IT support, network administration, and infrastructure, Network+ is often listed as a requirement or strong preference. It also provides a solid foundation for more advanced certifications: CCNA, Security+, and cloud certifications all build on the networking fundamentals Network+ covers.
If you are working towards a networking or infrastructure career, Network+ is one of the most efficient certifications you can earn.
Next Steps
If you are ready to start your exam preparation, ICT Exam Academy's Network+ N10-009 practice exams give you five full timed mock exams with domain-level scoring and detailed explanations — everything you need to identify your weak spots and walk into the exam with confidence.
Good luck with your preparation.
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