practicality

1) This is mostly for the Americans, although anyone can jump in if they feel free (although I know the Canadians' answer) - what would you call this style of hat?

2a) How many people here go to universities/colleges who decide registration times based on your previous averages?

2b) Have any of you had to defer required courses because they were full before your registration time came up/know someone who had to defer?

(The first came up in a discussion among the Wargamers, and the second, in a conversation I'm having right now with Yana, which sprung out of my worry about not getting the summer classes I wanted, 'cause I can't register until Monday)