1. Extend the previous exercise. Estimate the size (in octets) of an IP datagram that carries one-quarter of a second of audio encoded in PCM, placed in an RTP packet, and encapsulated in UDP. (Hint:...

1. Extend the previous exercise. Estimate the size (in octets) of an IP datagram that carries one-quarter of a second of audio encoded in PCM, placed in an RTP packet, and encapsulated in UDP. (Hint: RFC 1889 defines the size of an RTP header.)

2. RTP contains a companion protocol known as the Real-Time Control Protocol (RTCP) that allows a receiver to report the quality of messages received to a sender. How can adaptive video encoding use the status of received messages?