Please help with network HW how do we get the 1% could you give some explanation as well as rules on why? Thanks! A client sends a 128-byte request to a server located 100 km away over a 1- gigabit optical fiber. What is the efficiency of the line during the remote procedure call? Sending 1000 bits over a 1 Gbps line takes 1 sec. The speed of light in fiber optics is 200 km/msec, so it takes 0.5 msec for the request to arrive and another 0.5 msec for the reply to get back. In all, 1000 bits have been transmitted in 1 msec. This is equivalent to 1 megabit/sec, or 1/10 of 1% efficiency.