On your first day of work as a junior engineer, network users are complaining that cannot access any network services. One smart user indicates that she ran a command and noticed the following IP address $169\mathrm{.}254\mathrm{.}1\mathrm{.}1.$

Answer the following questions based on the brief USE CASE given above.

$1)$ What does the address indicate?

$2)$ List $3$ possible causes for the address given, briefly explain them and suggest solutions

$3)$ What CLI command did the smart user use to determine the address given?

$4)$ What CLI command can be used to test the network to ensure connectivity is restored based on the solution you gave?