A$.$ Calculate the round$-$trip time in a network of two ground stations communicating via a geostationary satellite in orbit $(36000$ km$)$ with a transmission rate of $100$ Mb$/$s$.$ Assume that packets are exempted with a size of $1000$ bytes.

B$.$ What is the corresponding parameter of the communication protocol for the maximum throughput of the network? Assuming that packets are exempted with a size of $100$ bytes each. How many bytes of overhead are added per packet for transmission and reception?