Instead a quiz, or along with a quiz without attempting those restrictions. Adding in a series of instanced tests you can do to obtain mentor ship. Ones that will test your basic knowledge of the game where you do battles and then answer a few questions, after you beat it you earn a temporary Mentor badge. You would need to retake it later for re-certification.

The reason it shouldn't have those restrictions with tabbing out would be, those with smartphones/2nd laptop or pc can still look it up. Think of the exam as the SeeD exam from FFVIII.