A mobile TCP receiver is receiving data from its TCP sender. What will the RTT and the RTO evolve when the receiver gets farther away and then nearer? Assume the moving speed is very fast so that the...

A mobile TCP receiver is receiving data from its TCP sender. What will the RTT and the RTO evolve when the receiver gets farther away and then nearer? Assume the moving speed is very fast so that the propagation delay ranges from 100 ms to 300 ms within 1 second.

A connection running TCP transmits packets across a path with 500 ms propagation delay without being bottlenecked by any intermediate gateways. What is the maximum throughput when the window scaling option is not used? What is the maximum throughput when the window scaling option is used?