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210-065 · Question #138
210-065 Question #138: Real Exam Question with Answer & Explanation
The correct answer is A: BFCP is a secondary video channel that is used for content such as slide presentations and. BFCP (Binary Floor Control Protocol) is the protocol that provides the secondary video content channel in SIP-based video conferences, used for sharing presentations and similar content.
Question
Which function does BFCP provide?
Options
- ABFCP is a secondary video channel that is used for content such as slide presentations and
- BBFCP is used to determine who is allowed to send media to the content channel.
- CBFCP provides the ability to pan, tilt, and zoom the far end's camera.
- DBFCP negotiates who can send DTMF tones and when the tones are sent.
Explanation
BFCP (Binary Floor Control Protocol) is the protocol that provides the secondary video content channel in SIP-based video conferences, used for sharing presentations and similar content.
Common mistakes.
- B. While BFCP involves floor control signaling, this answer incorrectly frames it as solely an access control mechanism rather than the protocol that provides the secondary content channel itself.
- C. Far End Camera Control (FECC), not BFCP, is the protocol used to pan, tilt, and zoom a remote endpoint's camera.
- D. DTMF tone transmission and negotiation are handled by RTP Named Telephone Events (RFC 4733) or SIP INFO methods, not by BFCP.
Concept tested. Binary Floor Control Protocol secondary content channel
Reference. https://www.rfc-editor.org/rfc/rfc4582
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