Question: Suppose a 128-kbps point-to-point link is set up between Earth and a rover on Mars. The distance from Earth to Mars (when they are closest

Suppose a 128-kbps point-to-point link is set up between Earth and a rover on Mars. The distance from Earth to Mars (when they are closest together) is approximately 55 Gm, and data travel over the link at the speed of light—3 × 10⁸ m/sec.

(a) Calculate the minimum RTT for the link.

(b) Calculate the delay × bandwidth product for the link.

(c) A camera on the rover takes pictures of its surroundings and sends these to Earth. How quickly after a picture is taken can it reach Mission Control on Earth? Assume that each image is 5 Mbit in size.

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a Calculate the minimum RTT for the link RTT Round Trip Time is the time taken for a packet of data to travel from the source Earth in this case to th... View full answer

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