Suggestions for questions

[mauvehed]

• Name as many ways as you can to count the number of instances of a word in a file (grep -c, wc -l, etc)
• In what circumstance can df and du disagree on available disk space? How do you solve it? (locked files)
• What is the difference between hashing and encrypting?
• In as much detail as you can, explain a 3 way handshake (how deep can they go?)
• When would you want to use UDP over TCP?
• What is LVM?
• What is /proc/mdstat?