1) a) (5 pts) Suppose you are developing a multimedia networking application which requires a minimum data transfer rate from the network in order to function effectively. Which of the two transport layer protocols, TCP or UDP, will you prefer? Justify your answer. b) (5 pts) Is it possible for an application to realize reliable data transfer even when the application runs over UDP? If so, how? c) (6 pts) TCP uses cumulative acknowledgements as opposed to the individual acknowledgements. Give two advantages of using cumulative acknowledgements. d) (7 pts) Assume that the bandwidth of a connection is 10 Mbits/sec (10x10 bits/sec) and the round-trip propagation delay for the connection is 20 msec. Assume that each data segment is 1000 Bytes long including the headers and the ACK packets are 40 Bytes long. Assuming that no packets are lost, what should be the minimum window size (in terms of data segments) in order to achieve full bandwidth utilization for this connection? e) (8 pts) Suppose that a file composed of 32 segments, each with a size of 1250 Bytes, will be transferred over a TCP connection with a round-trip delay of 10 ms and bandwidth of 100 Mbps, i.e., 100x106 bps. Assume that no loss event occurs during the entire file transfer. Further assume that the slow start threshold (ssthresh) at the beginning of the TCP connection is infinitely large. Ignore all processing and queueing delays and assume that ACK messages have a negligibly small transmission time. How long does it take to transmit the entire file and receive the final ACK