I need help with A and B I answred A but i\'m not sure if i\'m right if someonce

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I need help with A and B I answred A but i'm not sure if i'm right if someonce could help me with these two questions as soon as possible

1. Consider an application that transmits data at a steady rate. Also, when such an application starts, it will continue running for a relatively long period of time. Answer the following questions, briefly justifying your answer: Would a packet-switched network or a circuit-switched network be more appropriate for this application? Why? A packet switched network would be more appropriate for this application. The reason why is because packet switch networks a. Suppose that a packet-switched network is used and the only traffic in this network comes from such applications as described above. Furthermore assume that the sum of the application data rates is less than the capacities of each and every link. Is some form of congestion control needed? Why? b.

Explanation / Answer

A. A circuit-switched network would be appropriate to the application, because the application has long sessions with smooth bandwidth requirements which are predictable. As the transmission rate is known and it is not bursty, hence we can reserve bandwidth for each application session without any
waste. Also, the overhead costs of setting up and tearing down connections are calculated over the lengthy duration of an application session.
B. In the worst condition, all the applications will transmit over one or more network links simultaneously. Though, each link has sufficient bandwidth which can handle the sum of all of the applications' data rates, no congestion will occur which results very little queuing. Therefore in the presence of such generous link capacities, the network does not need any congestion control mechanisms.

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