Free practice exams for US licenses and certifications.
DecipherU is a practice-exam site for US licenses and certifications. 9 exams are live: CompTIA Security+, ISC2 CC, CompTIA CySA+, BACB BCBA, SAFE MLO and 4 more. Practice is free, with right or wrong on every answer; the full analysis is $39, once. Questions are drafted with AI and checked against cited sources. No licensed professional has reviewed them.
Practice free today
- CompTIA Security+150 questionsPractice free
- ISC2 CC60 questionsPractice free
- CompTIA CySA+40 questionsPractice free
- BACB BCBA90 questionsPractice free
- SAFE MLO90 questionsPractice free
- Florida Life and Health205 questionsPractice free
- Texas Life, Accident and Health201 questionsPractice free
- Texas Property and Casualty215 questionsPractice free
- California Life Agent66 questionsPractice free
Practice exams are free; the full analysis is $39 once.
75 exams to practice free, no account needed, with right or wrong on every answer and your score.
Not sure what to pursue?
Find out which licenses and certifications fit you, in about 14 minutes. Free, no account, no timer. It is a beta that has not been validated yet.
Find your exam
Search by name, state or field. The most sought exams come first.
- Driver knowledge test (California)California Department of Motor Vehicles
- CDL general knowledgeFederal Motor Carrier Safety Administration and state licensing agencies
- Food handler cardState and county health departments (cards from ANAB-accredited providers)
- NCLEX-RNNational Council of State Boards of Nursing (NCSBN)
- Real estate salespersonState real estate commissions
- Nurse aide (NNAAP)Credentia
- RBTBehavior Analyst Certification Board
- NREMT EMTNational Registry of Emergency Medical Technicians
Upcoming exam changes Which version of your exam are you taking
Courses
Fifteen courses written from primary sources, each with a checkpoint at the end. Free until September 2027.
Finish a course and get a certificate of completion from DecipherU verifying you completed it.
- SOC Analyst FundamentalsTriage an alert, write the analyst note, and explain the NIST 800-61 lifecycle in an interview.6 modules · 14 h
- Break In: Land Your First Cybersecurity JobPick a first role on purpose, build the portfolio that gets you screened in, and run the search week by week.10 modules · 18 h
- AI Security EngineeringDefend an LLM application and its agents: prompt injection, tool misuse, data leakage, and the tests that prove the fix.16 modules · 68 h
- Cloud Security FundamentalsRead an AWS, Azure or GCP account the way an auditor does: identity, network, logging, the shared responsibility line.6 modules · 16 h
- AI Governance and RiskWrite an AI policy a company can follow, mapped to the NIST AI RMF and the EU AI Act, with the risk register to match.12 modules · 49 h
- Cybersecurity Sales MasteryRun a discovery call with a CISO, price against the incumbent, and close without overselling what the product does.22 modules · 29 h
The library
What people look up while they study, with the number of entries in each collection today.
How it works
- Answer. One question at a time, weakest domain first, and you say how sure you are.
- Get your score. Free: right or wrong on every answer, your running score, and timed mocks in the exam's own format.
- Get the full analysis. One payment per exam: the right answer, the reason and the source for every question, readiness by domain using the owner's published domain weights where they exist, the answers you were sure of and got wrong, and a study plan that starts with your weakest domain.
Try one question
A junior SOC analyst is documenting controls for the organization's authentication system. Multi-factor authentication is enforced for all administrative access; the help desk can override MFA on a documented exception basis with a 24-hour expiry. Which control category and type best describe the help-desk override capability under the SY0-701 control taxonomy?
One free Security+ question. The practice page continues with no account; a free account keeps your score across devices.
Teaching a class? A class code groups your students' practice, in aggregate, at no cost.
Contribute a question. Write one with a primary source; the ones that hold up go into the free set.
The questions are drafted with AI from primary sources and checked against them by our process, and no licensed professional has reviewed them; Julian Calvo designed the method. DecipherU is independent of CompTIA, ISC2 and every other certifying body named on the site; their certification names are their trademarks.
Who stands behind this page
- Accountable editor
- Julian Calvo, Ed.D., founder. Ed.D. in Learning Sciences (University of Miami), MBA (Lynn University), Master's in Organizational Learning and Leadership (Barry University). His credentials are in learning sciences and assessment design, not in the field this exam covers.
- Licensed professional review
- None on record. No licensed professional has reviewed this question bank. It is drafted with AI and checked against its cited sources by our process.
- How the questions are made
- Drafted with AI (Anthropic's Claude) from the official outline and primary sources, then checked against the source each question cites by our process. Julian Calvo designed this method. No real exam content is used. Read the AI disclosure and the methodology.
- Facts last checked
- . Found a mistake? Report it in the corrections log.