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OUESTION 4113 MARKS ] In order to ensure reliable data transmission, both sender and receiver must be able to know a. RDT 2.0 works on the posibility of Show the calculation of how does the utilization of performance is low without pipelining. on the given details. Show all your workings. [ 4 marks] - 4 packet pipelining - Bandwidth of link =1Gbps - Propagation delay =15ms - Packet length =16,000 bit - RTT=30ms c. Read and comprehend the list of the given statement of Go-Back-N (GBN) protocol: - This is the operation of the GBN protocol for the case of a window size of four packets. - Because of this window size limitation, the sender sends packets 0 through 3 but then must wait for one or more of these packets to be acknowledged before proceeding. - As each successive ACK (for example, ACK0 and ACK1 ) is received, the window slides forward and the sender can transmit one new packet (packet 4 and packet 5 , respectively). - On the receiver side, packet 2 is lost and thus packets 3,4 , and 5 are found to be out of order and are discarded. - Timeout packet 2 occurred, the sender resend all packets that have been previously sent but that have not yet been acknowledged Draw and clearly label the operation between sender and receiver to fulfil abo descriptions. [ 6 marks]