It might be a LAN or Host network. I'm not sure about your question, but your answer might reside in your notes for this class.
I believe you have to install locate with "sudo apt-get install locate" and type "locate 'filename'"
They work in many different ways?
Answer:
They are particularly use when it is use for cutting small or very precise cut. They are particularly use in joint making mostly dovetail joints
hope it helps