Since when do RedHat exams have answers? They are all practical tests now (and have been for a long time I think). The "questions" are:
1) boot this computer, doesn't work? Fix it. Still doesn't work? Fix some other stuff.
2) create some users and give them access to this and that
3) install and configure this program and that program
4) now install this infrastructure resource and make it work
5) hurry up and finish, you're almost out of time!
FWIW Microsoft has even added some practical content, but they are nowhere near as good as the RedHat exams.