1. Compare and sketch the difference between Circuit switching networks versus the packet switching networks. Discuss when to use each. State the advantage and the disadvantage for each. 2. Suppose...

Extracted text: 1. Compare and sketch the difference between Circuit switching networks versus the packet switching networks. Discuss when to use each. State the advantage and the disadvantage for each. 2. Suppose that the users in a building shares an access link with a capacity of 8 Mbps. When a user is active, the user transmits at a rate of 2 Mbps. A user is active in 10% of the time. а. Circuit-switching: Suppose that circuit-switching is used, how many users can be supported? b. Packet-switching: Suppose that packet switching is used: i. How many users can be supported if the queueing delay at the access link must be maintained negligible (there will be no significant queuing delay)? ii. What is the probability that a specific user is transmitting at a given moment? iii. probability that all the users will be transmitting at the same time? What is the fraction of time during which the queue grows? Suppose that are 5 users in the building, what is the Suppose that there are 20 users in the building, what is the probability that more than 4 users will be transmitting at the same iv. time? V. When packet-switching is used, users can be supported with a probability of the quality of service (queuing delay). to have degradation in