Q:1. Calculate the latency (from first bit sent to last bit received) for:
(a) A 100 Mbps Ethernet with a single store-and-forward switch in the path, and a packet size of 1,000 bytes. Assume that each link introduces a propagation delay of 10μs and that the switch begins retransmitting immediately after it has finished receiving the packet.
(b) Same as (a) but with three switches.
(c) Same as (b) but assume the switch implements cut-through switching: it is able to begin retransmitting the packet after the first 128 bits have been received