Question: undefined (4) A particular data communication system can be modeled as a parallel network of four M/M/1 nodes having service rates of 1.2, 1.25, 1.4

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(4) A particular data communication system can be modeled as a parallel network of four M/M/1 nodes having service rates of 1.2, 1.25, 1.4 and 1.5 packets per microsecond respectively. The arrival rate of packets in the network is 2 = 1 x 106 packets/second, determine the following and derive the equations used: (a) Utilization of each node (b) Expected number of packets in each node (b) Expected number of packets in the system (d) Average packet delay of the system. (11 marks) (4) A particular data communication system can be modeled as a parallel network of four M/M/1 nodes having service rates of 1.2, 1.25, 1.4 and 1.5 packets per microsecond respectively. The arrival rate of packets in the network is 2 = 1 x 106 packets/second, determine the following and derive the equations used: (a) Utilization of each node (b) Expected number of packets in each node (b) Expected number of packets in the system (d) Average packet delay of the system. (11 marks)

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