How to Pass CompTIA Security+ in 30 Days
TL;DR
- →Start with Professor Messer's free SY0-701 video course and take handwritten notes from Day 1 - passive watching doesn't stick.
- →Switch to daily practice exams by Week 2 - Jason Dion's Udemy test bank is worth the $15 and it's the closest thing to the real exam you'll find.
- →Track every topic where you score below 70% in a spreadsheet and go back to targeted review - don't just keep taking full exams and hoping the score improves.
- →Stop studying new material 48 hours before exam day - at that point, more input hurts more than it helps.
Thirty days to pass CompTIA Security+? Honestly, yes — if you're willing to actually put in the work. This is a beginner-level cert, but don't let that fool you into coasting. The SY0-701 exam covers a lot of ground: cryptography, threat actors, identity management, network security, and performance-based questions that'll catch you off guard if you're not ready. I've been through this exam myself, and I've coached people through it with less than a month to prep. It's doable. But only if you're studying daily, using the right materials, and running practice exams like your $404 exam fee depends on it — because it does. Here's exactly how to pull it off.
Is 30 Days Realistic for CompTIA Security+?
For most people with basic IT exposure or a CompTIA Network+ background, 30 days is tight but totally achievable. You're looking at roughly 40 to 60 hours of focused study over the month. That's not casual reading — that's active studying, flashcards, and practice questions every single day. If you're starting completely cold with zero IT background, give yourself 45 to 60 days instead. No shame in that. But if you know what a subnet is and you've used a firewall before, 30 days works. The exam itself is 90 minutes, 90 questions max, and you need a 750 out of 900 to pass. That's about 83%. It's not a gimme, but it's not brutal either.
Week 1: Build Your Foundation
Start with Professor Messer's free SY0-701 course on his website — seriously, it's free and it's excellent. Watch the videos in order and take notes by hand. Don't just highlight. Buy Mike Chapple and David Seidl's 'CompTIA Security+ Study Guide' for the written depth. Your Week 1 focus areas: threats and vulnerabilities, basic cryptography concepts, and the CIA triad. Skip nothing in the first week — you're building the mental map everything else hangs off of. Set up Anki flashcards as you go. By Day 7, you should have finished at least the first third of your study material and have 100-plus flashcards ready to drill.
Weeks 2–3: Deep Practice and Weak Spots
This is where most people blow it — they keep watching videos instead of doing questions. Stop that. By Week 2, you need to be running practice exams daily. Use Jason Dion's practice tests on Udemy - they're close to the real thing and brutal enough to expose your gaps. The topics that consistently wreck Security+ candidates: PKI and certificate management, identity federation (SAML, OAuth, OpenID), and the performance-based questions involving log analysis. Don't skip the PBQs in practice. For every topic you score below 70% on, go back to Messer's notes for that specific domain. Track your weak spots in a spreadsheet. Fix them before Week 4.
Week 4: Exam Simulation and Final Review
Full timed practice exams only. 90 minutes, 90 questions, no pausing. Do at least one every day this week. You want to hit 80% or above consistently before you sit the real thing - not once, consistently. If you're scoring 75% and plateauing, don't keep taking the same test bank. Get a different set of questions. ExamCompass has free ones. By Day 28, stop learning new material. Seriously, stop. You're not going to cram a new concept the night before and retain it. The last two days are review only - flashcards, weak-spot notes, and one more timed sim. Then you're done studying. Trust the reps.
Day-Before and Exam-Day Checklist
The night before: review your weak-spot notes for 30 minutes max, then stop. Eat a real meal. Sleep 7-8 hours - this isn't optional. Morning of: eat breakfast, bring two valid forms of ID to a testing center or get your remote setup ready an hour early. You can't bring notes in. Arrive 15 minutes early if testing in person. During the exam, answer every question - there's no penalty for guessing. Flag difficult ones and come back. PBQs at the start can be time-consuming, so don't spend more than 5 minutes on any one before moving on.
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