1.What are the possible actions that a process can take upon receiving a signal? Write commands for sending a hungup signals to a process with PID 10289.

When a process receives a signal, it can take various actions depending on the signal type, the process state, and the signal handler defined for that signal. Here are some possible actions that a process can take upon receiving a signal:

1. Ignore the signal.
2. Terminate the process immediately.
3. Stop the process temporarily.
4. Continue the process execution after the signal handler has finished executing.
5. Execute a custom signal handler routine.

To send a hangup (HUP) signal to a process with PID 10289, you can use the `kill` command with the following syntax:

kill -HUP 10289

This command sends a HUP signal to the process with the PID 10289, asking it to reload its configuration files or perform other cleanup tasks. Note that the process may have defined a custom signal handler for HUP signal, which may change its behavior.