Why People Fail Security+ SY0-701 (and How to Pass)
A sizeable share of candidates fail CompTIA Security+ SY0-701 on their first attempt — rarely for lack of effort. The exam punishes rote memorisation and rewards judgement. Here are the 8 mistakes that actually sink people, why each one happens, and the exact fix.
01 The real numbers
CompTIA does not publish official pass rates for Security+, so treat every figure as an estimate rather than fact. From community discussion, prepared candidates seem to pass at roughly 70–80% on the first attempt, which still leaves a meaningful slice — somewhere around 20–30% — walking out with a fail. Most of those people were not lazy. They studied for weeks, watched the courses, and read the objectives. They failed because of how they studied, not how long.
SY0-701 is a maximum of 90 questions in 90 minutes, blending standard multiple-choice with performance-based questions (PBQs) — interactive items that drop you into a simulated firewall, log, or terminal and ask you to actually do something. Scoring is on a 100–900 scale and you need 750 to pass. Because the scale is not a raw percentage, a "borderline" prep that lands you in the low 700s on practice tests is exactly the zone where a couple of mistimed PBQs tip you under the line.
02 The 8 reasons people fail
Memorising acronyms and ports without understanding
The mistake: drilling flashcards of acronyms, port numbers, and one-line definitions, expecting straight recall questions.
Why it happens: Security+ looks like a vocabulary exam, and most free content is glossary-shaped. Memorising 443 = HTTPS feels like progress.
The fix: learn the why behind each term — when you would choose SAML over RADIUS, why TLS 1.3 beats 1.2, what a control actually mitigates. The exam tests the decision, not the definition.
Watching video courses passively and calling it studying
The mistake: streaming a 30-hour course at 1.5× speed, nodding along, never testing yourself.
Why it happens: video feels like effort and demands nothing back. The illusion of fluency peaks right after you finish a lecture.
The fix: flip the ratio — spend at least half your hours on practice questions and active recall. People who failed then passed almost all stopped watching and started answering.
Ignoring the performance-based questions until exam day
The mistake: practising only multiple-choice and meeting your first PBQ live, in the exam, with the clock running.
Why it happens: PBQs are harder to find as free practice and uncomfortable to attempt. People assume they are "just harder MCQs".
The fix: practise PBQs deliberately — drag-and-drop control matching, reading a log to spot the attack, configuring a firewall rule. They carry more weight, and skipping all of them makes passing very hard.
Treating cryptography and PKI as optional
The mistake: skimming hashing, symmetric vs asymmetric encryption, certificates, and the chain of trust because the maths "feels hard".
Why it happens: crypto is the most abstract topic and easy to defer. It also threads through several domains, so the pain compounds quietly.
The fix: learn it as plumbing, not theory — what a CA does, why you need a CSR, how a digital signature differs from encryption, when to use AES vs RSA. PKI questions appear in MCQs and PBQs alike.
Under-studying Security Operations, the heaviest domain
The mistake: spreading time evenly across the five domains and skimming the big one — Security Operations is 28% of the exam.
Why it happens: people study what feels comfortable. Hardening, monitoring, IAM operations, and incident response are broad and dry.
The fix: weight by the blueprint. Domains 2, 4 and 5 together are roughly 70% of the marks — put the most hours there, especially Security Operations.
Missing the scenario qualifier in the question
The mistake: picking a correct-but-not-best answer because you skimmed past "MOST secure", "BEST", or "FIRST step".
Why it happens: time pressure breeds skimming, and several options are genuinely valid — the qualifier is the word that separates them.
The fix: read the final sentence first and mentally underline the qualifier. When two answers both "work", the qualifier is the tiebreaker the exam wants.
Treating Security+ as pure theory with no hands-on context
The mistake: studying entirely on paper — never reading a real log, never touching a firewall rule or a packet capture.
Why it happens: Security+ is an entry-level cert and people assume it is "all definitions". The PBQs say otherwise.
The fix: spend a few hours in a free lab — inspect logs in a SIEM trial, write a basic firewall ACL, run Wireshark, read an Nmap output. Operational context is exactly what PBQs reward.
Booking the exam out of impatience, not readiness
The mistake: scheduling because the study deadline arrived, not because the practice scores actually said "ready".
Why it happens: a booked date forces discipline — but it also forces a sitting before the data supports it.
The fix: let the readiness signal book the date. Repeatable 85%+ on fresh full-length, timed exams first; the calendar second.
03 Study habits that backfire vs. work
Same hours, wildly different outcomes. The difference is almost entirely active vs. passive — and whether you respect the PBQs.
| What fails | What works instead |
|---|---|
| Re-watching videos and re-reading notes | Active recall — answer questions first, then look up what you missed |
| Cramming acronym and port flashcards in isolation | Learning the use case — "use this control because… not that one because…" |
| Drilling only multiple-choice questions | Practising PBQs — logs, firewall rules, control matching, under time |
| Studying broad and even across all five domains | Weighting by blueprint — most time on Security Operations (28%) + Threats (22%) |
| Tracking hours studied | Tracking practice-exam % by domain and attacking the weakest |
04 Exam-day mistakes that cost passes
Plenty of well-prepared people lose Security+ in the room, not in the books — and the PBQs are usually where the damage starts.
05 Are you actually ready? A pre-exam check
If you cannot honestly tick every box below, you are in the band where people fail. Fix the gaps before you book.
- Repeatable 85%+ on at least three fresh full-length, timed practice exams — not one lucky score on a familiar bank.
- You have practised PBQs separately and can read a log, match controls, and build a basic firewall rule without panicking.
- You can explain symmetric vs asymmetric encryption, what a CA and CSR do, and how a digital signature differs from encryption.
- You instinctively read the qualifier ("MOST secure", "BEST", "FIRST") before choosing an answer.
- You know each acronym and port by its use case, not just its expansion.
- Your weakest domain is still above 75% — especially Security Operations (28%) and Threats (22%).
- You can finish a full 90-question set inside 90 minutes with time banked for the flagged PBQs.
06 FAQ
What is the Security+ SY0-701 pass rate?
CompTIA does not publish official pass rates, so every figure is an estimate. Community discussion generally puts the first-time pass rate somewhere in the 70–80% range for prepared candidates, which still leaves a meaningful share failing on their first sitting. The exam is scored on a 100–900 scale and you need 750 to pass.
Why do so many people fail SY0-701?
The biggest single reason is treating it as a pure-memorisation exam. SY0-701 is heavily scenario-driven and includes performance-based questions (PBQs) at the start that simulate real tasks. Candidates who only memorised acronyms and port numbers — without understanding when and why a control is used — cannot reliably pick the BEST or MOST secure option under time pressure.
How many times can you retake the Security+ SY0-701?
You can retake immediately after a first failure with no waiting period, but after a second failure CompTIA enforces a 14-day wait between further attempts. There is no cap on total attempts beyond that wait, and you must buy a new voucher (about $404 USD) each time, as CompTIA does not discount retakes.
What practice-test score means I'm ready for SY0-701?
Aim for a consistent 85%+ across multiple full-length, timed practice exams you have not seen before, with every domain above 75% and PBQs practised separately. A single good score on a familiar question bank is not enough — you want it repeatable on fresh questions and inside the 90-minute limit.
