) Suppose there is a 15 Mbps microwave link between a geostationary satellite and its base station on Earth. Every minute the satellite takes a digital photo and sends it to the base station. Assume a propagation speed of 2.4 108meters/sec. a) What is the propagation delay of the link? b) What is the bandwidth-delay product, R dprop c) Letx denote the size of the photo. What is the minimum value of x for the microwave link to be continuously transmitting? Note: Typically, bandwidth-delay product refers to the product of a data link's capacity (in bits per second) and its round-trip delay time (in seconds). The result, an amount of data measured in bits (or bytes), is equivalent to the maximum amount of data on the network circuit at any given time, i.e., data that has been transmitted but not yet acknowledged. In this exercise we are abusing the term to be the product of a data link's capacity (in bits per second) and its delay time (in seconds)- not the round-trip delay-. So in a sense in our case the bandwidth-delay product is the maximum amount of data in the network link that have not yet been received