There are quiz things. The online textbook ones do more than multiple choice like you can have questions where students enter a formula, or they deal with questions where students might have to enter a number but they need to account for students rounding etc. They also can randomize questions or parts of questions so Joe sees "Kelly has 8 balls" and Sally sees "Kelly has 5". But there are open source systems like LON-CAPA that will do all that too. But the book published ones come with giant quiz banks full with questions relevant to the subject/book used while the open source ones require you to make your own or scour for other people's. The school also doesn't have to host it. And of course no one needs to mark it except in the situations where it fucks up. It's an attractive cheap solution for schools and departments at the cost of the students which kinda sucks.

Course notes are typically posted by the prof if they want on services like Blackboard or Brightspace or Moodle. My university student union had a random PC with an old exam bank.