Please answer a-g plus: (Be sure to write out the general expression for m in terms of the given variables; g1. Find distance m such that dprop = 2 dtrans; g2.

Find distance m such that dtrans = 2 dprop)

P6. This elementary problem begins to explore propagation delay and transmis- sion delay, two central concepts in data networking. Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, and suppose the propagation speed along the link is s meters/sec. Host A is to send a packet of size L bits to Host B, a. Express the propagation delay, dprop, in terms of m and s. b. Determine the transmission time of the packet, derans, in terms of L and R. c. Ignoring processing and queuing delays, obtain an expression for the end- to-end delay d. Suppose Host A begins to transmit the packet at time I = 0. At time 1 = dtrans, where is the last bit of the packet? e. Suppose dprop is greater than derans. At time 1 = derans, where is the first bit of the packet? f. Suppose dprop is less than deans. At time 1 = trans, where is the first bit of the packet? g. Suppose s = 2.5.10%, L = 120 bits, and R = 56 kbps. Find the distance m so that dprop equals derans