Question $22$

Given the following point to point $(/30)$ network, what is the IP address of the unknown

router $($labeled

xxx$.$xxx$.$xxx$.$xxx$)?$

xxx$.$xxx$.$xxx$.$xxx

$89\mathrm{.}90\mathrm{.}96\mathrm{.}146$

$89\mathrm{.}90\mathrm{.}96\mathrm{.}147$

$89\mathrm{.}90\mathrm{.}96\mathrm{.}144$

$89\mathrm{.}90\mathrm{.}96\mathrm{.}145$

$89\mathrm{.}90\mathrm{.}96\mathrm{.}146$