💡 TL;DR: Most CompTIA candidates waste weeks re-watching video courses and highlighting notes — then blank on exam day because passive study doesn't build the recall skills the PBQ (performance-based questions) demand. The fix: build active recall habits around ports, protocols, hardware, and security concepts from day one, then stress-test your knowledge with timed practice exams before you ever schedule the real thing.
CompTIA certifications — A+, Network+, Security+ — look approachable on paper. Vendor-neutral. Multiple choice. No prerequisite degrees. But the pass rates tell a different story: roughly 60-70% of first-time test-takers fail at least one domain.
The problem isn't the content volume (though that's real — Security+ alone covers 35 domains across five core areas). The problem is how most people study it.
The standard approach: watch Professor Messer's full video series, take notes, flip through a Quizlet deck a few times. That feels like studying. It isn't. You're building recognition — the ability to pick the right answer when you see it. But CompTIA exams test retrieval under time pressure, with deliberately ambiguous distractors and scenario-based questions that require applying concepts, not just naming them.
Dunlosky et al. (2013) reviewed ten popular study techniques and found that re-reading and note-taking are among the least effective strategies for durable learning. What actually works: active recall and practice testing — exactly the habits most CompTIA candidates skip.
There's also the hardware identification problem. For A+, you need to recognize connector types, RAM generations, storage form factors, and BIOS settings by sight. No amount of reading a description of "M.2 2280" will make you recognize it faster than ten minutes with a labeled diagram you draw from scratch.
Active recall means forcing your brain to produce information from nothing — no notes in front of you. For CompTIA, this looks like:
This hurts. That's the point. The cognitive effort of retrieval is what cements memory. A 2021 meta-analysis in Psychological Science in the Public Interest found active recall improves long-term retention by 50% over re-reading.
For A+: Draw motherboard layouts and connector types from memory.
For Network+: Explain OSI layers aloud, associating each with real protocols.
For Security+: Recite attack vectors and mitigations without notes.
CompTIA exams are infamous for port number questions — "What port does SFTP use?" (22). There are hundreds of these. Flashcards work here because this content is genuinely declarative — you need rapid, automatic retrieval, not deep conceptual understanding.
Build your own cards rather than using a pre-made Quizlet deck. The act of writing "SSH: Port 22 — encrypted remote shell" is itself a learning event. Aim for cards that are:
Use spaced repetition (Anki or Snitchnotes) to schedule reviews. Don't just go through the whole deck daily — let the algorithm surface cards before you forget them, not after you already know them cold.
CompTIA A+ and Network+ include performance-based questions (PBQs) — drag-and-drop simulations, CLI tasks, or configure-this-router scenarios. You cannot prepare for these by reading. You need hands-on reps.
Free options:
Aim for at least 2 hours of lab work per week. The goal isn't to become a sysadmin — it's to make the PBQ simulations feel familiar. Candidates who do labs score 15-20 points higher on PBQs than those who only watch videos (CompTIA's own research, 2022).
Professor Messer's free study guides and video courses are the gold standard CompTIA resource, but they're only useful if you don't watch them passively. The fix:
Professor Messer also releases per-exam practice exams — these are excellent. Use them as diagnostic tools, not as a measure of readiness. Track which domain you miss most, then go back to that domain's videos.
Start taking full-length, timed practice exams earlier than you think. Don't wait until you "feel ready" — that feeling never comes and you'll run out of time.
The protocol:
Aim for 85%+ on practice exams before scheduling your real exam. The actual exam is harder than most free practice tests, so a 75% practice score might mean a real-exam fail.
Timeline: Budget 4-6 weeks per exam for someone with basic IT familiarity; 8-10 weeks if you're starting cold.
Weekly framework:
Hours per day: 1-2 hours on weekdays, 3-4 on Saturday.
Exam timing: Schedule your exam before you feel 100% ready — having a hard deadline prevents indefinite prep loops. Aim for roughly Day 35-40 of a 6-week plan.
1. Watching videos as the primary activity. Professor Messer is a study supplement, not a study plan. If 80% of your time is video-watching, you're not preparing for an exam — you're watching TV about IT.
2. Skipping subnetting practice. Network+ candidates routinely bomb the subnetting questions because they "read about" CIDR notation without practicing the math. You need to calculate subnet masks under time pressure. Do this daily until it's automatic.
3. Treating all domains equally. Security+ has five domains, weighted differently. "Threats, Attacks, and Vulnerabilities" (24% of the exam) deserves triple the time of "Architecture and Design" (15%). Allocate study hours proportionally to domain weight.
4. Not simulating exam conditions. Sitting a 90-question exam after drinking coffee at your desk with YouTube on in the background is not the same as a Prometric testing center with no phone, no notes, and a timer you can see. Practice in silence, timed, no external resources.
Free resources:
Paid (worth it):
Snitchnotes: Upload your CompTIA study notes — vendor whitepapers, domain summaries, port lists — and Snitchnotes AI generates flashcards and practice questions in seconds. Great for building custom quizzes around your weak domains and grinding ports/protocols on mobile between study sessions.
How many hours should I study for CompTIA certifications per day?
Plan for 1-2 focused hours per weekday and 3-4 hours on one weekend day, totaling 10-14 hours per week. Quality matters more than quantity — 90 minutes of active recall and practice questions beats 4 hours of passive video watching. Most candidates need 4-8 weeks per exam depending on experience level.
What's the best way to memorize ports and protocols for Network+ and Security+?
Build bidirectional flashcards (port → protocol and protocol → port) with one-line use cases. Use spaced repetition software like Anki so you review cards just before forgetting them. Group related protocols together — all file transfer protocols, all email protocols — to build mental clusters that stick better than isolated facts.
How hard is CompTIA Security+ compared to A+ and Network+?
Security+ has the broadest content scope of the three, covering cryptography, threats, vulnerabilities, identity management, PKI, and incident response. Most candidates find it harder than A+ but similar in difficulty to Network+. Expect 4-6 weeks of dedicated study. With consistent active recall and weekly practice exams, it's very passable — the fail rate is high mainly because people under-prepare.
Is CompTIA A+ worth it in 2026?
For entry-level IT roles — help desk, desktop support, IT technician — A+ is still the baseline credential most hiring managers expect. It signals foundational hardware and OS knowledge. If you're targeting networking or security roles, skip straight to Network+ or Security+. The A+ is most valuable as a first credential; later certifications carry more weight.
Can I use AI tools to study for CompTIA exams?
Yes — AI tools are excellent for drilling weak domains, generating scenario-based questions, and explaining concepts in plain language. Upload domain notes or exam objectives into Snitchnotes to auto-generate flashcards and quiz questions. Use ChatGPT to explain confusing concepts with analogies. Just don't rely on AI-generated practice questions as a substitute for official practice exams — accuracy varies.
Studying for CompTIA certifications — whether A+, Network+, or Security+ — comes down to one non-negotiable: you have to practice retrieval, not just recognition. Close the book, recall the port numbers, simulate the labs, and take timed exams before you think you're ready.
The candidates who pass on the first attempt aren't smarter — they just refused to let passive video-watching count as studying. Flashcards, labs, practice exams, and active recall are how you build the automaticity the real exam requires.
Ready to start? Upload your CompTIA study notes or exam objectives into Snitchnotes — the AI generates flashcards and practice questions in seconds, so you can drill ports, protocols, and security concepts anywhere, anytime.
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