None at all. I don't know why people keep asking questions like these about various certifications. It would make no sense at all for a test to be purposefully made harder just because the test taker claimed to be an expert or for a test to be easier for someone saying they have never heard of the subject. This would basically make the certification useless because you would have different level of passing. The whole point of a certification is to establish a minimum standard and stick to it. The purpose of the survey is most likely to judge how well the test is written and what type of people are being drawn to the certification. If 100% of the people who claim to have very little knowledge of the subject are passing with 90% then it is fair to say the test is too easy. On the otherhand, if "experts" are failing left and right then the test maybe too hard or concentrating on the wrong areas. If it makes you feel better than you can mark the novice selection on every question but it is not going to effect the exam itself.
If you settle for what they are giving you, you deserve what you get. Fight for this tiny ad!