Question: Consider a network using a node-by-node window for each session. Suppose that the transmission capacity of all links of the networks is increased by a factor K and that the number of sessions that can be served also increases by a factor K. Argue that in order for the network to allow for full-speed transmission for each session under light traffic conditions, the total window of the network should increase by a factor K if propagation delay is dominated by packet transmission time and by a factor K2 if the reverse is true.