Two stations communicate via a 1 Mbps satellite link The satellite serves merely to retransmit data received from one station to another with negligble switching delay The up-and-down propagation?

The up-and-down propagation delay for a satellite link is primarily determined by the distance to the satellite and back to Earth. For geostationary satellites, this distance is approximately 35,786 kilometers, leading to a round-trip propagation delay of about 240 milliseconds. Consequently, while the link operates at 1 Mbps, the effective throughput will be impacted by this latency, especially in applications sensitive to delay, such as real-time communications.