Which of the following commands erases the contents of the /dev/sdb3 partition?
Which command is used to install a GRUB boot loader into the master boot record?
After a lot of write operations, the administrator want to ensure that the kernel flushes the file system buffers to disk. Which command will accomplish this? (Specify ONLY the command without any path or parameters.)
Where would fsck put any unreferenced file or file fragments on a ext4 filesystem?