Suppose a 128-kbps point-to-point link is set up between Earth and a rover on Mars. The distance
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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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Related Book For 
Computer Networks A Systems Approach
ISBN: 9780128182000
6th Edition
Authors: Larry L. Peterson, Bruce S. Davie
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