CISSP mock exams · Quick 10, linear and CAT
CISSP mock exams and the CAT simulator
CISSP mock exams: free Quick 10 (10 questions, 20 minutes), Practice-plan linear mocks of 50 questions in 75 minutes and 150 questions in 3 hours, and a Pro CAT simulator (100–150 items, 3 hours). The question bank behind them has 2,076 practice questions. Not affiliated with ISC2.
| Exam | Access | Length | Time | Open it |
|---|---|---|---|---|
| Quick 10 | Free, no login | 10 questions | 20 minutes | Start |
| Domain practice | Free sample, or the full bank on Practice / Pro | 10 with no login; 10 per domain with a free account; full bank when paid | Untimed practice, or use a mock when you want a clock | Practice |
| Linear mock | Practice plan or Pro | 50 questions | 75 minutes | Start 50 |
| Linear mock | Practice plan or Pro | 150 questions | 3 hours | Start 150 |
| CAT simulator | Pro plan | 100–150 items | 3 hours | Start CAT |
Quick 10
Quick 10 is the free timed quiz: 10 random questions, 20 minutes, review at the end. No account. Start the free quiz.
Linear 50 and linear 150
These are fixed-length timed mocks on the Practice plan (and included with Pro). The 50-question mock is 75 minutes. The 150-question mock is 3 hours. They are linear: you can flag and review. They are not adaptive, and they do not use the CAT stopping rule. Practice is ₹2,000 / $29 / €27 per year and does not include the CAT.
50-question mock · 150-question mock
CAT simulator
The CAT simulator is Pro only (₹5,000 / $69 / €64 per year). It follows the published ISC2-style rules used on this site: 100 to 150 items, 3 hours, no going back, hidden pretest items and confidence stopping, plus per-domain proficiency tracking. Read how the CISSP CAT exam works, then open the simulator.
Every mode is in the browser. There is no separate iOS or Android app. The full bank and the rules are also summarised on the CISSP practice test page.
Mock exam FAQ
Which CISSP mock can I take for free?
Quick 10 is free with no login: 10 questions, a 20-minute timer and a review at the end. A free account also opens 10 questions in each domain. Linear mocks and the CAT simulator need a paid plan.
What is the difference between the linear mocks and the CAT simulator?
The linear mocks are fixed length: 50 questions in 75 minutes, or 150 questions in 3 hours, on the Practice plan (Pro includes them too). You can flag and review. The CAT simulator is Pro only. It runs 100 to 150 items in up to 3 hours, does not let you go back, mixes in hidden pretest items and stops on a confidence rule.
Do I need the Pro plan for every timed exam?
No. Quick 10 is free. Linear mocks of 50 and 150 questions are on the Practice plan (₹2,000 / $29 / €27 per year) and on Pro. Only the CAT simulator needs Pro (₹5,000 / $69 / €64 per year).