Computing

Hey, I have started these questions off but just wanted to ask if somebody could check it and explain if they are incorrect. Thanks.

Could someone please explain this question to me ? I am really struggling on it/don't understand it at all. You can find the mark scheme on the EDEXCEL website-> its the 2016 spec and 2018 paper 2. Id rather understand it through an explanation than look at the mark scheme. Thank You!

i was on my vm for the first time just messing around and i was in the terminal just copy and pasting random commands and i typed ip and this came up then i copy and pasted that in for some reason and this popped up for a couple seconds it ended up disappearing nearly instantly i thought thi

Please could someone help on each. Thank you :-)

How do I open hidden files on SSH Linux. I've googled how to do this, but all the commands they said to use do not work. I am doing the cyberstart game project and is stuck on this terminal level game.