Exam Meta KNX Basic: exam questions with worked answers

Questions for the "Exam Meta" topic

1. Q01

   The KNX Basic theoretical exam is open-book: candidates may consult their PDF or paper course documentation during the test.

   TrueFalse

   10. Exam Meta· Prüfungsregeln· Easy

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   Correct answer

   True

   Learning tip

   True. The official KNX Basic Course exam regulations explicitly allow candidates to use the course handbook and personal notes during the theoretical part, on paper or in printed PDF form. The intent is to assess comprehension of the concepts rather than memorisation of figures such as the maximum number of devices per line or DPT identifiers. Training centres are expected to enforce the no-communication rule, but the documentation itself is fair game.

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2. Q02

   The asymmetric scoring of the KNX Basic exam (+1 for a correct answer, -0.5 for a wrong one, 0 for an abstention) makes it sensible to abstain on questions whose answer is completely unknown rather than to guess at random.

   TrueFalse

   10. Exam Meta· Bewertungsschema· Medium

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   Correct answer

   True

   Learning tip

   True. With a +1/-0.5/0 scheme, a pure random guess on a True/False question has an expected value of 0.5 x 1 + 0.5 x (-0.5) = +0.25, which looks positive but is highly volatile and easily wiped out by a streak of wrong guesses on borderline items. Abstaining yields a guaranteed 0, which is strictly better than the negative outcome that follows a wrong guess and protects the cumulative score on questions where you have no signal at all. The rule of thumb taught in KNX training centres is: guess when you can eliminate at least one option or when intuition is clearly biased, abstain when the topic is genuinely unknown.

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