Consider two hosts, A and B$,$ connected by a single link of capacity R bps and separated by

a distance of m meters. Assume the signal propagation speed along the links is s meters$/$s$.$

Host A sends a packet of size L bits to Host B$.$

$($a$)$ Express dprop and dtrans in terms of the given parameters.

$($b$)$ Suppose host A begins to transmit the packet at time t $=0.$ At time t $=$ dtrans, where

is the last bit of the packet?

$($c$)$ Suppose dprop $>$ dtrans. At time t $=$ dtrans, where is the first bit of the packet?

$($d$)$ Suppose dprop $<$ dtrans. At time t $=$ dtrans, where is the first bit of the packet?

$($e$)$ Let s $=2\mathrm{.}5108$

$,$ L $=120$ bits, and R $=56$ kbps$.$ Find the distance m such that

dprop $=$ dtrans.