Question: Suppose users share a 3 Mbps link. Also suppose each user requires 1 5 0 kbps when transmitting, but each user transmits only 1 0

Suppose users share a 3Mbps link. Also suppose each user requires 150 kbps when transmitting, but each user transmits only 10% of the time.a. When circuit switching is used, how many users can be supported?b. Fortheremainderofthisproblem,supposepacketswitchingisused.Findtheprobability that a given user is transmitting.c. Suppose there are 120 users. Find the probability that any given time, exactlyn users are transmitting simultaneously. (Hint: use the binomial distribution.)d. Findtheprobabilitythatthereare21ormoreuserstransmittingsimultaneously.

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