Question $1$

If $B$ issues an ARP Request for $173\mathrm{.}3\mathrm{.}22\mathrm{.}127$ what information if any does each of the computers put into their ARP caches? R$,$ A B$,$ C$.$ Explain.

Question $2$

In mynet with tables again empty, B issues an ICMP Echo Request message to $173\mathrm{.}3\mathrm{.}22\mathrm{.}127,$ what information if any does each of the computers put into their ARP caches? R$,$A$,$B$,$C$,$ Explain

Question $3$

Which computer responds with an ICMP Echo Reply and why?