Which of the following signals is sent to a process when the key combination CTRL+C is pressed on the keyboard?
Which of the following signals is sent to a process when the key combination CTRL+C is pressed on the keyboard?
The signal sent to a process when the key combination CTRL+C is pressed on the keyboard is SIGINT. SIGINT, which stands for 'Signal Interrupt,' is typically initiated by the user to interrupt a running process. This interrupt signal can be caught by the process, allowing it to execute cleanup routines before terminating, or it can cause the process to terminate immediately.
The key combination CTRL+C sends the SIGINT signal to a process. Explanation: SIGTERM (signal 15) is sent to terminate a process gracefully. SIGINT (signal 2) is sent to interrupt a process. It is typically initiated by the user pressing CTRL+C on the keyboard in the terminal. This signal can be caught by a process, allowing it to perform any necessary cleanup operations before exiting. SIGSTOP (signal 19) is sent to suspend a process temporarily. SIGKILL (signal 9) is sent to force a process to terminate immediately without performing any cleanup operations. Therefore, when a user presses CTRL+C, the operating system sends the SIGINT signal to the process running in the foreground of the terminal, allowing the process to perform any necessary cleanup operations before exiting. If the process does not catch the SIGINT signal, it will terminate immediately.