Knowledge is of two kinds. We know a subject ourselves, or we know where
we can find information on it. – Samuel Johnson, 1709-1784, English Author
and Critic

I always liked open-book tests in school (Caltech rocks!) because I felt like it was more like the real world, where it matters less how much you know off the top of your head, and it matters more how much information you can find quickly and figure out how to use that information effectively and efficiently.