COMPTIA NETWORK+ / IS HARD Find the difficult parts.
Build a plan around them.

Published by PrepForCerts · Editorial responsibility and sources · Updated April 8, 2026

What Makes CompTIA Network+ Challenging?

Network+ sits at the intermediate level of CompTIA's certification pathway, and it demands genuine networking knowledge — not just memorization. Here's what makes candidates struggle:

• Subnetting under pressure: You must calculate subnet masks, CIDR notation, and usable host ranges quickly and accurately. Unlike multiple-choice guessing, subnetting questions have exact numerical answers. Many candidates report subnetting as the single hardest skill to master.
• Massive memorization load: You need to know dozens of port numbers (well-known ports 0-1023), protocol functions, cable specifications, wireless standards (802.11a/b/g/n/ac/ax), and connector types. There's no shortcut — this requires dedicated flashcard practice.
• Performance-based questions (PBQs): These simulated scenarios require you to configure network devices, troubleshoot connectivity issues, and interpret network diagrams in real time. PBQs test practical application, not theoretical knowledge.
• Troubleshooting methodology: The exam expects you to follow structured troubleshooting approaches (identify, theory, test, plan, implement, verify, document) and apply them to complex multi-step scenarios.
• Abstract concepts: Topics like VLANs, spanning tree protocol, QoS, and SDN can be difficult to understand without hands-on experience configuring actual network equipment.

Domain-by-Domain Difficulty Breakdown

The Network+ exam covers five domains with varying difficulty levels. Here's how candidates typically rate each domain:

Network Troubleshooting (Domain 5) is the highest-weighted and most difficult domain. It combines knowledge from all other domains into complex scenario-based questions. Candidates who score poorly here usually fail the exam even if they do well on other domains.

How Network+ Difficulty Compares to Other Certifications

Knowing where Network+ sits relative to other certifications helps calibrate your expectations:

Realistic Study Timeline by Experience Level

Your networking background dramatically affects preparation time. Here's what successful candidates report:

• No networking background: 3-5 months studying 1-2 hours daily. Start with networking fundamentals before diving into exam-specific content. Budget 250-400 total study hours. Consider taking A+ first to build foundational knowledge.
• CompTIA A+ certified: 2-3 months studying 1-2 hours daily. Your hardware and basic networking knowledge transfers directly. Focus on subnetting, advanced protocols, and troubleshooting. Budget 150-250 hours total.
• Network administrator experience: 4-8 weeks of focused review. Your daily work covers most exam objectives. Focus on areas where your experience has gaps (wireless standards, cloud networking) and practice PBQs. Budget 80-150 hours total.
• CCNA or equivalent certified: 2-4 weeks to learn CompTIA-specific terminology and exam format. Your networking knowledge exceeds Network+ requirements. Budget 40-80 hours of exam-specific prep.

Top 5 Reasons Candidates Fail Network+

Learning from others' mistakes is the fastest way to improve your chances. Here are the most common failure patterns:

1. Weak subnetting skills: Subnetting appears in multiple question types and cannot be guessed. Candidates who can't quickly calculate network addresses, broadcast addresses, and usable host ranges lose points across multiple domains. Practice until subnetting is automatic.
2. Memorization gaps in ports and protocols: Knowing that HTTPS uses port 443 isn't enough — you need to know dozens of ports, their protocols, and whether they use TCP or UDP. Incomplete memorization leads to wrong answers on what should be "free points."
3. Ignoring PBQ preparation: Performance-based questions require configuring network devices in simulated environments. Candidates who only study multiple-choice questions are unprepared for these high-value questions that test practical application.
4. Skipping hands-on labs: Network+ concepts like VLANs, routing tables, and wireless configuration are much harder to understand from reading alone. Candidates who use packet tracer, GNS3, or physical equipment consistently outperform book-only studiers.
5. Poor time management: With up to 90 questions in 90 minutes, including PBQs that can take 5-10 minutes each, time management is critical. Flag PBQs, complete multiple-choice questions first, then return to PBQs with remaining time.

Proven Strategies to Make Network+ Easier

These strategies have helped thousands of candidates pass Network+ on their first attempt:

• Master subnetting first: Spend your first 1-2 weeks exclusively on subnetting. Use online calculators to check your work, then practice without them. You should be able to subnet a /22 network in under 30 seconds before moving on.
• Create a port/protocol reference sheet: Build your own reference document of all required ports, protocols, and their functions. The act of creating it reinforces memorization, and you can use it for quick review sessions.
• Use Packet Tracer or GNS3: These free network simulation tools let you build virtual networks, configure routers and switches, and troubleshoot connectivity issues. Even 30 minutes of lab time per study session dramatically improves retention.
• Take practice exams under real conditions: Simulate exam conditions — 90 questions in 90 minutes, no notes, no breaks. This builds time management skills and reveals weak areas while they're still fixable. Use 85%+ as an optional review target. Also review missed topics and hands-on skills before scheduling; the percentage does not predict a pass.
• Study the OSI model deeply: Many questions reference OSI layers indirectly. Understanding which protocols and devices operate at which layer helps you answer questions you haven't specifically studied.

Frequently Asked Questions