Which of the following statements is incorrect regarding processes ?

The command to take a backup of files and directories on magnetic tape is:

The UNIX command

Which key combination instructs the shell to terminate the session ?

Which command prints the current working directory ?

Which command is used for changing the ownership of a file or directory?

To Rename a file, you use the command:

If you accidentally deleted a file FFF with the 'rm FFF' command, you can restore it using:

To make a file ac2 executable, you use the command:

When root creates a new account, by default the account password is:

The search path is stored in an environment variable named: