Question
A telegram is transmitted on a line. Which devices execute the command it carries?
Answer
D — Only the devices whose parameters contain the matching group address.
Correct: All devices listen in, but only those with the same group address as the telegram execute the command.
Source
KNX Basic Course Documentation — 3.11 — p. 75
All proposed choices (exam context)
- A.Every device on the line, because all of them receive the telegram.
- B.Only the line coupler of that line.
- C.Only the device that sent the telegram.
- D.Only the devices whose parameters contain the matching group address.✓
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