To clarify, those are the default keybindings, but you can change them to match your needs or expectations. I like the alt tilde for windows within a program switching, it works fairly well though I have not set it up on my current machine yet.
What do you do with a faulty RAID drive? Early in the morning!
I don’t know about videos but having a look at the OSI model is a good way to start. It covers the abstract framework for packetizing data including things like the distinction between hardware and software, envelope, encryption, application layer stuff, the whole shebang. The cool thing is by going hardware, network, application you can see where responsibility are and it helps you understand where things can go wrong.
If you are interested there are plenty of CCNA style courses available on the internet, licit and otherwise, and they go into more depth, and the same applies to RHCE/RHCSA material. The training for certifications like that covers what you want to know but also puts it in context, and again licit and otherwise sources are available.
Woah, that is wild, I hope you did some bug reporting about that, for something to go so insanely wrong it would have to be a fairly bad bug but also hard to find. Cool trick though, “Check this out, Copy ate my Y key, I am without purpose!”