Telecom And Networking Test 1 Practice

RTP carries the actual audio or video data in real-time for a VoIP call, providing the payload along with timing and sequencing information so playback stays synchronized and smooth. While signaling (to set up and control the call) is handled by other protocols, RTP is focused on delivering the media stream itself. It uses timestamps and sequence numbers to help the receiver reconstruct the timing and order of packets, which is essential for real-time audio/video. Control and quality feedback about the media delivery come from RTCP, which operates alongside RTP but does not carry the media payload. The media traffic is typically carried over UDP to minimize latency; using TCP would introduce delays due to its retransmissions and buffering, hurting real-time playback. So the statement that correctly identifies RTP’s role is that it carries audio and video data.