Which of the following commands can be used to access the content of a ramdisk file (/boot/initrd) used by the kernel at boot time?
Which mount option must be used in the example /etc/fstab entry below, to ensure that a specific filesystem is not mounted when the system is booted?
Which command with all parameters and arguments, can be used by root to erase the cron job list for the user fred?
In order to generate a pair of asymmetric keys to use during an SSH connection, please choose the correct command to use?