What command changes the nice level of a running process?
(Specify ONLY the command without any path or parameters)

When booting from the hard disk, a computer successfully loads the Linux kernel and initramfs but hangs during the subsequent startup tasks. The system is booted using a Linux based rescue CD to investigate the problem. Which of the following methods helps to identify the root cause of the problem?

Which of the following commands list all files and directories within the /tmp/directory and its subdirectories which are owned by the user root? (Choose two.)

When piping the output of find to the xargs command, what option to find is useful if the filenames have spaces in them?

FILL BLANK
What directory contains configuration files for additional yum repositories? (Specify the full path to the directory.)