Question: A file transferred using a circuit switched network. The file is L bits long, and the transmission passes 10 links. Each link transmits at a

A file transferred using a circuit switched network. The file is L bits long, and the transmission passes 10 links. Each link transmits at a data rate of R bps. To establish a circuit over the links, a delay of dcs seconds is incurred. (a) Give an expression of the file transfer time, and obtain the numerical value of the file transfer time when L = 80 Mbits, n = 10 links, R = 10 Mbits/sec, and dcs = 250 milliseconds.

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