You are a network administrator tasked with configuring a new Ethernet interface on a Linux server. The server runs an older version of Ubuntu that does not use netplan for network configuration. You need to set a static IP address for the interface eth$1$ with the following settings:

IP Address: $192\mathrm{.}168\mathrm{.}1\mathrm{.}100$

Subnet Mask: $255\mathrm{.}255\mathrm{.}255\mathrm{.}0$

Gateway: $192\mathrm{.}168\mathrm{.}1\mathrm{.}1$

Which of the following steps would you take to configure this interface?

answer

Edit the $/$etc$/$network$/$interfaces file to include the interface configuration.

Use the ifconfig command to set the IP address and subnet mask, then route add default gw $192\mathrm{.}168\mathrm{.}1\mathrm{.}1.$

Edit the $/$etc$/$netplan$/01-$netcfg.yaml file to include the interface configuration.

Use the nmcli tool to configure the interface directly from the command line.