Let us consider we have 8 hosts (namely S, T, U, V, W, X, Y, Z) connected to an ethernet switch via star topology. The forwarding table in the switch is initially empty. Consider the following events

1. Host T sends a frame to host Y.
2. Host Y replies with a frame to host T.
3. Host V sends a frame to X and host X replies with a frame to host V
4. Host W sends frames hosts S and T.

Illustrate the state of switch forwarding table before and after each of these events. For each of these events, identify the links on which the frames will be forwarded while briefly justifying your answer.