How did you determine what you already know?

[davewill]

Yeah, you just have to look through lists of tests and courses to see what jumps out at you. You can take some practice tests if you're not sure what's covered.

For most people Astronomy is a very difficult exam, but I've been interested in it since I was a kid, and while I had to study, it was quite doable. It was the same, if a bit less so, for me with Anthropology. The rest of my degree was largely dictated by the degree requirements, but I chose CS both because I knew the material and because that's the degree I needed.