Network+ study guide
CompTIA Network+ validates the core skills to design, configure, manage, and troubleshoot wired and wireless networks. It's a common stepping stone to Security+ and CCNA.
Details below were checked in October 2026 against official and widely cited sources. Exams, prices, and requirements change, so confirm with the certifying body before you register.
Eligibility
- There are no formal prerequisites.
- CompTIA recommends A+ (or equivalent knowledge) and 9–12 months of networking experience.
Exam format & cost
| Current exam | N10-009 |
|---|---|
| Length | Up to 90 questions, 90 minutes, multiple choice and performance-based |
| Passing score | 720 on a 100–900 scale |
| Exam fee | Check CompTIA's store for current US pricing |
| Renewal | Valid for 3 years. Renew with continuing education units or a qualifying higher certification |
Domains
| Domain | Weight |
|---|---|
| 1. Networking Concepts | 23% |
| 2. Network Implementation | 20% |
| 3. Network Operations | 19% |
| 4. Network Security | 14% |
| 5. Network Troubleshooting | 24% |
How to study
- Memorize common ports and protocols, and practice subnetting until it's fast.
- Learn the CompTIA troubleshooting methodology in order. Questions often ask what to do FIRST.
- Understand VLANs, STP, routing basics, Wi-Fi bands and standards, and DHCP/DNS failure symptoms.
- Troubleshooting is the biggest domain, so practice reasoning from symptoms to causes.
Ready to test yourself on Network+?
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