14,448 practice questions across 18 certification tracks, 94 courses that teach the work itself, and simulated placements where you do that work day by day.
Practice on the go
Rapid Fire
Real CompTIA Security+ questions, scored on speed and streaks. No account needed.
After a break-in attempt, a company installs motion-activated floodlights around its data center perimeter. The lights are not connected to any alarm or camera system. What type of control is this?

Question banks, flashcards, study notes, performance-based questions and a full timed exam simulation, for 18 certification tracks.
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94 courses that teach the work a role actually does, each ending in a certificate of completion rather than an exam.
Browse courses
Work a fictional company's queue day by day, produce real artifacts, and finish with a verifiable record of what you built.
See how it worksEvery bank is weighted to that exam's published domains. All 18 tracks are free.
Role-shaped courses that teach the work rather than an exam. Each one ends in a certificate of completion.
Each simulation puts you inside a fictional company for a set number of working days. You take the tickets as they come, make the calls, and leave with the artifacts you produced.
Explore Experience Lab
5 working days
5 working days
8 working days
5 working daysEvery company, colleague and dataset in a simulation is fictional. A placement is practice, not employment, and completing one is not a job guarantee.
Four steps, and none of them are behind a paywall.
Choose the certification you're sitting, or a Job Ready course if you're after the work rather than the exam. Progress is kept per track, so switching costs you nothing.
Questions are served in the same proportions as the exam's published domain weightings, so the areas worth the most points get the most of your time.
A full-length, timed exam simulation drawn from a separate pool, so a good score means you know the material rather than that you remember the questions.
Job Ready courses end in a certificate of completion, and Experience Lab turns one into a simulated placement with artifacts you can put in front of a hiring manager.
The parts that keep you going: people to study with, something to aim at, and a record of what you did.
Create a group, invite people with a link, and see everyone's progress in one place. Each person picks their own exam.
How groups workWhere you stand this week among people sitting the same certification, ranked on questions answered. You choose whether to appear.
See the boardA daily goal, a streak that a freeze covers when you miss an evening, and a weekly recap of what you actually got through.
Start a streakBring a team or a cohort, assign an exam built from the question bank, and see who is ready. Free, with no seat charges.
For organizationsA guided route with real tasks, a monthly theme and a reviewer who reads what you submit. Apply, and work to a schedule you commit to.
How it worksRecent updates you can use once you are signed in.

Study with friends in one place. Create a group, invite people in, and see everyone's progress side by side.
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Apprentice tasks now take you straight to the work they ask for, and bring you back to your next task when you are done.
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Certificates now scale to fit any screen, and each one has a public verification link you can send to anyone.
Try itSubmitted after a real practice session or exam simulation, and checked before it appears here.
I learned how appointment reminders, insurance verification, prior authorizations, patient privacy, and call management work together to improve patient access. I also learned to use data to identify problems and recommend practical improvements without making assumptions.
Ability to gauge performance on the go.
Pretty good especially the examples
Including the one about whether it is really free. It is.
Yes, all of it. There is no paid tier and no credit card. Every feature - the full question banks, flashcards, study notes, performance-based questions, games, the study plan and the timed exam simulator - is open to every account.
18 certification tracks across CompTIA, ISC2, AWS, Microsoft, Cisco, ISACA, PMI and CNCF, including Security+, A+, Network+, ISC2 CC, AWS, Azure, CCNA and CISM. You can switch between tracks at any time and your progress is kept separately for each one.
14,448 practice questions, 2,691 flashcards, 558 study notes, 1,154 study games and 185 performance-based questions across 18 certification tracks. Every item is reviewed and approved before it is published.
Yes. Each track's question bank is distributed to match the domain weightings in that exam's published objectives document, so a practice session or exam simulation gives you a realistic mix rather than an even spread.
Job Ready courses teach the work itself rather than an exam, and end in a certificate of completion. Experience Lab turns a course into a simulated placement: you work a fictional company's tickets day by day and finish with artifacts you can show. Neither one is a job guarantee, and the certificate certifies completion of the course, not an industry certification.
No - the free practice tests are open to anyone, no account required, up to 20 graded questions a day. An account removes that daily cap and unlocks the full question banks, flashcards, study notes and the exam simulator.
They are original questions written from each certification body's publicly published exam objectives. They contain no actual exam content, and we do not host or condone brain dump material.
Yes. Study Groups let you create a group, invite people with a link or by email, and see everyone's progress in one place. Each member picks their own certification track or Job Ready course and their own finishing date, so one group can hold several people sitting different exams. Teams and classes can use an organization instead, with cohorts and assigned exams.
A daily goal and a streak, with a freeze that covers the occasional missed evening. A weekly board ranks people studying for the same certification on questions answered, and you choose whether to appear on it. A weekly recap shows what you actually got through.
Yes. They're submitted by real learners after a practice session or exam simulation, and every one is checked by our team before it's shown here.