Consider sending a file of F bits over a path of Q links. Each link transmits at R bits per second $($bps$).$ The network is lightly loaded so that there are no queueing delays. When a form of packet switching is used, the F bits are broken up into packets, each packet with L bits, of which h bits of it are header. Propagation delay is negligible. Let F $=2$x$107,$ Q $=35,$ R $=50$ Mbps$,$ L $=500,$ and h $=10.$