Two hosts, A and B, are separated by m meters and are connected by a direct link with data rate R bps. The propagation speed along the link is s meters/sec. Host A wants to send a packet of size L bits to Host B. a) Write an expression for the propagation delay, dpop, in terms of m and s. b) Write an expression for the transmission time of the packet, desam, in terms of L and R. c) Suppose Host A begins to transmit the first bit of the packet at time t-0. At what time wil Host A finish transmitting the first bit of the packet? This can be interpreted as the width of a bit on the link in time. d) Suppose Host A begins to transmit the first bit of the packet at time t -0. At the time when Host A finishes transmitting the first bit of the packet, how far has the leading edge of the bit traveled on the link? This can be interpreted as the width of a bit on the link in space e) Suppose Host A begins to transmit the first bit of the packet at time 0. At timedumn where is the last bit of the packet? f) Suppose dpop is greater than ds. At timetdn, where is the first bit of the packet? 8) Suppose dpop is less than duans. At timer dans, where is the first bit of the packet? h) Suppose dpop is greater than dunns. If a single packet of size L bits is sent from Host A to Host B, what is the maximum number of bits in the link at any time