CompTIA Linux+ (XK0-004) — Question 142

A new corporate policy states that Bluetooth should be disabled on all company laptops. Which of the following commands would disable the use of Bluetooth?

Answer options

• A. echo ג€blacklist bluetoothג€ > /etc/modprobe.d/blacklist-bluetooth
• B. echo ג€kill bluetoothג€ > /etc/modprobe.d/kill-bluetooth
• C. echo ג€modprobe bluetoothג€ > /etc/modprobe.d/modporbe-bluetooth
• D. echo ג€rmmod bluetoothג€ > /etc/modprobe.d/rmmod-bluetooth

Correct answer: A

Explanation

The correct command, option A, correctly uses 'blacklist' to prevent the Bluetooth module from loading. Option B incorrectly uses 'kill', which is not a valid command for disabling kernel modules. Option C attempts to load the module instead of disabling it, and option D tries to remove the module but does not prevent it from loading on system startup.