Summarize this article:

For professors who use pre-made quizzes from their "instructor's edition" textbooks, purchase a copy. Find the correct edition of the book online and buy it. Before a quiz memorise the answers to the questions. This method is good for entry level science, foreign language and/or history classes that pull their quizzes straight from the book. This can be done by talking to an old student or by talking to other students who might have connections in the class. Study straight from the exam, or if you suspect that the exam will be the same, study the answers straight. If you know a professor or teacher will let you come back to finish a test, purposefully don't finish the exam and ask to come back on a later date. Make sure to memorise the topics or questions so that you can look up the answers before finishing the test later. Claim to be sick, go to thee bathroom towards the end of the exam until its over. Or pace yourself slowly. Be sure that your professor will let you come back before using this method as you could actually do worse if he/she doesn't let you finish. As you turn in your exam, if your professor isn't at her/his desk, use a pencil you brought up with you to change or write in answers from the test at the top of the pile. (This is a high risk!) Keep in mind that some classrooms have cameras. Avoid this if the one you are in does have a camera, because if that is the case, it's much riskier. Knowing the exact format of the exam paper will help for this, so you can write down all important points on a paper which looks exactly like the the exam paper. If your exam paper is a question/answer type then remember to add one important point as the question and the other as the answer. You also have to include the page number and marks per question (if included). The next thing to do is staple this piece of paper with the original question paper during the test without anyone noticing.
Try getting the "Instructor's Edition" version of your Textbook. Try getting an "Advanced/Old Copy" of the test. Try the "Comeback Later" method. Try the "Bring Your Pencil" method. Try the "Fake Exam Paper" method.