1. When you see a problem on the screen, you have to give an answer. This means pressing number 1 if you think the solution to the problem is correct. Press number 2 when you think that the solution to the problem is incorrect. Please, use the numeric key pad, on the right side of the keyboard, to give your answer.
2. Answer as quickly as you can by pressing the appropriate key. The computer measures your response in thousands of a second. A "guessing" response is inappropriate. Try to avoid guessing.
Press 1 or 2 to start the exam