Question
Why does KNX RF natively support long frames?
Answer
B — To support the KNX Secure Application Layer (authentication and encryption), so the media coupler is not the security weak point
Correct: long frames carry the KNX Secure Application Layer, giving authentication and encryption and removing the media coupler as the weak point.
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An error or unclear wording? Report this questionAll proposed choices (exam context)
- A.To remove the need for a domain address or serial number
- B.To support the KNX Secure Application Layer (authentication and encryption), so the media coupler is not the security weak point✓
- C.To let unidirectional devices receive telegrams
- D.To raise the maximum transmission power above 25 mW
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