I was reading in a recent thread about how to succeed in D-school. Many people said they got old tests. I am an undergrad, and I am a little interested in these old tests.... What are the old tests, exactly? Are they tests that the students that are 1 year ahead of you, give you? Who gives you these "old tests"....WHO gives you these old tests? How do you get one? Also...be honest with your answers...is it easy to get an A on a test by studying old tests, or is it easier to get an A just by studying hard?