CompTIA Practice Tests: How to Use Them Properly

Score 83% on a CompTIA practice test and you have not scored "83%" in any sense the real exam recognises. CompTIA reports results on a scaled 100–900 range — Security+ requires 750, A+ Core 1 requires 675 and Core 2 requires 700 — and a scaled score is not a percentage of questions answered correctly. Scaled scoring exists so that different forms of the same exam, which vary slightly in difficulty, can be measured on one comparable ruler. Misreading practice percentages as exam scores is the single most common way CompTIA candidates mis-time their exam booking, in both directions.

Used properly, practice tests are still the best readiness instrument you have. This guide covers the method for CompTIA exams specifically — when to take practice tests, how to run them so the conditions mean something, what score patterns actually signal readiness, and how to review results so each test raises the next one. What it deliberately does not cover: which topics to study (that belongs to the official objectives for your exam) or how to design a full study plan week by week — our guide to building an exam practice routine handles the overall cadence.

What a CompTIA practice test needs to simulate

Before scheduling your first practice test, know what you are simulating. As of 2026, the current CompTIA exam versions look like this — always confirm details on CompTIA's own exam pages, since versions retire on roughly three-year cycles:

Exam	Current code(s)	Questions	Time	Passing score (scale 100–900)
A+ Core 1	220-1201	maximum 90	90 minutes	675
A+ Core 2	220-1202	maximum 90	90 minutes	700
Security+	SY0-701	maximum 90	90 minutes	750

Two features of this table shape your whole practice method. First, the pace: up to 90 questions in 90 minutes is a minute per question on average — but CompTIA exams mix standard multiple-choice with drag-and-drop and performance-based questions (PBQs), simulations that can consume five minutes or more each. Practising untimed hides the fact that pacing, not knowledge, fails many candidates. Second, the version codes: make sure any practice material you use names the current codes. A+ questions written for the retired 220-1101/1102 series follow an outdated blueprint, and CompTIA's Security+ page notes the usual three-year refresh cycle without naming a successor to SY0-701 — so check the official page rather than trusting a bank's marketing.

Note also that Network+ is CompTIA's recommended stepping stone before Security+; if that is your path, apply the same method below to each exam in sequence, checking Network+'s current format on CompTIA's site.

Timing: the three-phase schedule for CompTIA practice tests

Phase 1 — one diagnostic, before serious study

Take a single full-length practice test early, score it by objective domain, and expect it to go badly. Its job is not measurement of ability; it is a map of which domains need the most time — the difference between a technician who already lives in hardware questions and one who has never touched the security domains. Keep this to one test: repeated testing before studying just burns unseen questions. The full workflow for this baseline is covered in our guide to using a practice test as a diagnostic.

Phase 2 — targeted question blocks during study

Through the middle of your preparation, favour shorter domain-focused question sets over weekly full exams. After studying a domain, drill 20–30 questions on it, review every answer, and move on. This is retrieval practice doing its work — testing yourself beats rereading for retention — while conserving your supply of fresh full-length forms. During this phase, untimed is acceptable for drills, because the goal is learning, not measurement.

Phase 3 — full-length timed simulations in the final stretch

In the last two to three weeks, switch to complete 90-question, 90-minute simulations under exam discipline. These are your measurement instruments, so protect their integrity: fresh or long-unseen questions, one sitting, and honest conditions. How many you need before booking depends on your score stability — our companion piece on how many practice tests to take before an exam covers the quantity question, including the trap of recycling one question pool until you have memorised it.

Running a simulation that predicts the real exam

A CompTIA practice test only predicts CompTIA exam performance if the conditions match. Set up each Phase 3 simulation like this:

1. Timer at 90 minutes, non-negotiable. Finish or stop when it sounds — knowing your true pace is the point.
2. Clear desk, no references. If you will test online, CompTIA's online-testing rules require a workspace clear of books, papers and pens, with no extra monitors and no one else in the room; a mandatory room scan precedes the exam. Rehearsing under the same austerity makes exam day feel normal. Notably, CompTIA's online delivery provides a built-in digital whiteboard instead of scratch paper — so practise working through subnetting or logic problems on screen or a single mental pass, not on a notepad you will not have.
3. Handle PBQ-style items the exam way. A widely used approach for the real exam is to flag time-heavy simulations, clear the multiple-choice questions, and return with the remaining time. Build that habit now: when a practice simulation or long scenario stalls you, mark it, move on, come back.
4. Answer everything. Leaving blanks earns nothing; train yourself to make a reasoned elimination and commit.
5. Log the sitting. Date, form used, total score, per-domain results, and the questions you flagged as guesses — a correct guess is a hidden gap, and your log is where it stops hiding.