Suppose a 1-Gbps point-to-point link is being set up between the Earth and a new lunar colony. The distance from the moon to the Earth is approximately 360,000 km, and data travels over the link at the speed of light3 10⁸ m/s.

a) calculate the propogation delay for the link

b) calculate the transmission delay to send 1 MB of data

c) calculate the total delay (to the moon and back) to send 1MB of data to the moon assume that there is no processing or queuing delay and that the ACK back from moon is of negligible size

d) consider sending 120MB file from earth to moon. suppose the file is sent continuously as one big message. what is the maximum number of bits that will be in the link at any given time?