Question
Using group addresses in ETS, which group objects may be linked together?
Answer
B — Only group objects that have the same size.
Correct: the source states ETS only allows linking group objects that have the same size.
Source
KNX Basic Course Documentation — 4 — p. 39
All proposed choices (exam context)
- A.Any two group objects, regardless of their size.
- B.Only group objects that have the same size.✓
- C.Only group objects located in the same bus device.
- D.Only group objects that are exactly 1 bit in size.
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