1. Assume that a packet has a length of L bits, the links distance is d km, propagation speed is s m/s, and transmission rate is R bps. Whats the propagation delay here? What is the end-to-end delay (ignoring the queuing delay and processing delay)?

2. Consider two end systems, A and B, connected by a single link. Let dprop and dtrans be the propagation delay and transmission time of the packet. (a) Suppose end system A begins to transmit the packet at time t = 0. At time t = dtrans, where is the last bit of the packet? (b) Suppose dprop is greater than dtrans. At time t = dtrans, where is the first bit of the packet?