Understand your mistakes, revise the topics you find difficult and practise with a timed mock exam before your assessment.
No card · instant result · full access only if you choose it
In ETS, Bus Monitor shows raw telegram frames, while Group Monitor presents them filtered and decoded.
You are not collecting scores: you identify weak chapters, understand mistakes and automatically revisit what is not yet secure.
Track bank coverage, mastery by chapter and how close you are to the real passing threshold.
In learning mode, every answer reveals a detailed explanation and the public reference used to verify it.
Public KNX documentation · precise section when available
Missed questions are weighted ×4 and unseen questions ×3, so your time goes where it helps most.
Timer, true/false answers, blanks and wrong-answer penalties mean you also train your exam strategy.
Interface, questions and explanations are available in French, English and German.
Enter your exam date. The plan calculates how many new questions to cover each day and reserves the final week for mock exams.
Enter your date and turn the remaining bank into a concrete daily pace, with the final week reserved for mock exams.
Every plan includes the same complete bank and tools. Only the duration changes. The displayed price is the charged price, with no automatic renewal.
One-time payment · no renewal
One-time payment · no renewal
One-time payment · no renewal
No sign-up: answer, see your score and identify your first weak point.
Every mistake is explained with a public reference, so you learn instead of guessing.
Take the real-format simulation and track your preparation through your exam date.
Yes. You can answer 10 questions per day without an account or card. You only pay if you want the full bank and full mock exams.
No. CertifBus is independent of the KNX Association. The questions are original and based on public standard concepts, with the same format and scoring.
The full certification bank, timed mock exams, sourced explanations, repetition of missed questions and the plan through exam day.
You are preparing for KNX Basic certification. Practise theory at your own pace alongside your course and hands-on ETS work.
Read the KNX Basic guide →One order, one VAT-ready employer invoice. Tell us how many technicians you are preparing.
View the team offer →Start without an account or card. Your result immediately shows where to focus the rest of your preparation.
Start with the essentials
The Basic theory exam has 100 true/false statements in 90 minutes. Scoring is +1 for a correct answer, −0.5 for an error and 0 for a blank. The pass mark is 50%; you must also pass the practical exam.
CertifBus supports theory practice. Accredited KNX centres provide training, hands-on ETS practice and the certification process. Our exercises are independent practice, not official exam papers.
KNX Association references checked on 10 September 2026.
Official KNX exam regulations ↗Official KNX Basic course syllabus ↗Try the questions and explanations without an account. Then choose an access period that fits your preparation.