What is the function of the /etc/hosts file? Which services can you use in place of, or to supplement, the hosts file?
What does the /etc/resolv.conf file do? What does the nameserver line in this file do?
What is an inode? What happens to the inode when you move a file within a filesystem?
What does the .. entry in a directory point to? What does this entry point to in the root (/) directory?
What is a device file? Where are device files located?
What is a FIFO? What does FIFO stand for? What is another name for a FIFO? How does a FIFO work?