Question: Network Architectures Suppose users share a 2 Mbps link. Also suppose each user transmits continuously at 1 Mbps when transmitting, but each user transmits only

Network Architectures

Suppose users share a 2 Mbps link. Also suppose each user transmits continuously at 1 Mbps when transmitting, but each user transmits only 20 percent of the time.

a). When circuit switching is used, how many users can be supported?

b) For the remainder of this problem, suppose packet switching is used. Why will there be no queuing delay if two or fewer users transmit at the same time? Why will there be a queuing delay if three users transmit at the same time?

c) Find the probability that a given user is transmitting

d) Why will there be a queuing delay if three users transmit at the same time?

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