Cant agree with Casmira any more. Long answer questions are the key. Nail them and you will get to the top of the pack no time.
The thing is the examiners dont want to read a straight regurgitation of what your teacher told you write or what your boring old outdated IT textbook has to say about anything. You need to dazzle them with your broad IT knowledge.
Of course dont get off topic. Keep your answer relevant. But if you have a chance to showcase your knowledge, use it. IPT is a much better course for showcasing computer textbook and industry knowledge.
Hope that was some help to you