Question

When a tool wants to read or write the memory of a System 2, 7 or B device, how must it authorize itself?

KNX BasicLearnKNX Bus DevicesMedium
Answer

B — With an authorization key of 4 bytes

Correct: Access requires the tool to first authorize itself with a 4-byte authorization key.

All proposed choices (exam context)
  1. A.With an authorization key of 2 bytes
  2. B.With an authorization key of 4 bytes✓
  3. C.With an authorization key of 6 bytes
  4. D.No authorization is needed for System 2, 7 or B devices
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