Q. Which of the following commands is called as three-finger salute in computers? Answer:
Ctrl + Alt + Delete
Notes: The three-finger salute refers to the original PC-compatible system command to reboot or restart a computer by pressing three keys simultaneously: Control, Alt and Delete. The three-key combination of Control-Alt-Delete is specifically designed to be impossible to execute with one hand in order to avoid the potential for accidental reboots. It was developed by David Bradley.