$5\mathrm{.}1$ Approximately how many records do you have in your ARP table for the interface listed in the answer to Q $2\mathrm{.}1?($use command arp $-$a on Windows and arp on Linux$)$

Six.

$5\mathrm{.}2$ What information does each record of ARP table holds? $($Hint$,$ look at the columns of the output to your command.$)$

Each record shows the internet address, the physical address, and the type of dynamic or static.

$5\mathrm{.}3$ Do you have both statically and dynamically assigned MAC addresses for this interface? Briefly elaborate what it means.