Which of the following is the last IP address that can be assigned to hosts on the $166\mathrm{.}70\mathrm{.}0\mathrm{.}0$ network using the default subnet mask?

answer

$166\mathrm{.}71\mathrm{.}0\mathrm{.}0$

$166\mathrm{.}70\mathrm{.}0\mathrm{.}254$

$166\mathrm{.}70\mathrm{.}255\mathrm{.}255$

$166\mathrm{.}70\mathrm{.}255\mathrm{.}254$

$166\mathrm{.}70\mathrm{.}0\mathrm{.}255$