Netinstall is a powerful utility provided by MikroTik that allows reinstallation of RouterOS on RouterBOARD devices. It is primarily used for:
* Reflashing or reinstalling RouterOS
* Recovering devices that are not booting correctly
* Clearing configurations during reinstall
It does not allow you to reset the password without losing the configuration, nor is it used just for configuration reset.
MTCNA Official Course Material - Tools & Netinstall:
"Netinstall is used to reinstall RouterOS onto a MikroTik device via the network. It can be used to install a specific RouterOS version or wipe the existing installation." Rene Meneses MTCNA Guide - Tools Chapter:
"Netinstall allows you to reinstall RouterOS and optionally reset the configuration. It does not allow recovery of the existing password or configuration unless backed up beforehand." MikroTik Wiki - Netinstall Utility:
"Netinstall is a tool used for reinstalling RouterOS. It formats the system partition and reinstalls RouterOS.
This is useful in case of misconfiguration or firmware corruption."
Option B is incorrect - password reset is only possible via full configuration wipe.
Option C is not accurate - Netinstall reinstalls the entire OS, not just resets configuration.
Only A is correct.