Calculate the latency (from first bit sent to last bit received) for the following:

A 10-Mbps Ethernet with a single store-and-forward switch in the path, and a packet size of 5,000 bits. Assume that each link introduces a propagation delay of 10 s and that the switch begins retransmitting immediately after it has finished receiving the packet.

Same as (a) but with three switches.

Same as (a), but assume the switch implements cut-through switching; it is able to begin retransmitting the packet after the first 200 bits have been received.