Homework Question 13. 13. 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 Earth is approximately 385,000km, and data travels over the link at the speed of light (3108 meters per sec.). (5 points) (a) Calculate the minimum RTT (two-way propagation time) for the link. (In other words, how long would it take to send a single bit to the moon and immediately bounce it right back to Earth?) (b) Using the RTT as the delay, calculate the delay x bandwidth product for the link. (c) What is the significance of the delay X bandwidth product computed in (b)? (d) A camera on the lunar base takes pictures of the Earth and saves them in digital format to disk. Suppose Mission Control on Earth wishes to download the most current image, which is 25MB. What is the minimum amount of time that will elapse between when the request for the data goes out and the transfer is finished