Which command is used to configure the kernel network interfaces at boot in Linux and is primarily used for debugging or tuning the system?

Which command is used to configure the kernel network interfaces at boot in Linux and is primarily used for debugging or tuning the system?

• A. ifconfig
• B. ipconfig
• C. traceroute
• D. ping

Answer: (A)

Configuring how the kernel handles network interfaces at boot and for troubleshooting relies on a tool that can set an interface’s address, bring it up or down, and adjust basic settings from boot scripts or during debugging. The ifconfig command does exactly that: you can assign an IP address and netmask, enable the interface, and tweak related options, making it well suited for boot-time configuration and quick diagnostic adjustments. Although modern Linux favors the ip command for such tasks, the scenario described—setting up interfaces at boot or during debugging—fits ifconfig’s role. The other options are for diagnostics or cross-platform tasks: ipconfig is a Windows tool, traceroute shows the path packets take, and ping tests reachability, none of which configures kernel network interfaces at boot.

Configuring how the kernel handles network interfaces at boot and for troubleshooting relies on a tool that can set an interface’s address, bring it up or down, and adjust basic settings from boot scripts or during debugging. The ifconfig command does exactly that: you can assign an IP address and netmask, enable the interface, and tweak related options, making it well suited for boot-time configuration and quick diagnostic adjustments. Although modern Linux favors the ip command for such tasks, the scenario described—setting up interfaces at boot or during debugging—fits ifconfig’s role. The other options are for diagnostics or cross-platform tasks: ipconfig is a Windows tool, traceroute shows the path packets take, and ping tests reachability, none of which configures kernel network interfaces at boot.