Suppose that a 10 Mbps link is being shared among users. Furthermore, assume that each user needs 500kbps when transmitting but only does so 1% of the time. a. How many users can the link handle if we assume that circuit switching is used? b. Now, assume packet switching is used and suppose there are 100 users in the set. Find the probability that, at any given time, exactly 10 users are transmitting simultaneously