Question: Note: This is a computer networks question. please slove( help me with all parts) thanks Suppose we have a simple circuit-switched network consisting of four

Note: This is a computer networks question. please slove( help me with all parts) thanks

Suppose we have a simple circuit-switched network consisting of four switches and four links. All links in the network have a capacity of 6 Mbps. Each user requires a fixed rate R=150 Kbps when transmitting. However, a given user is active only 10% of the time. How many users can be supported with this network? Assume FDM is used to support the maximum number of users. If the time to set up a circuit is 50msec, how long would it take a user to transmit a file of size 640KB? If there are a total of 100 users, and if packet switching is used, what is the probability that 20 users are transmitting simultaneously

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