When using JSON , IE 9 browser seem to behave bit strangely. When I dig in to the issue i found that its because documents should be rendered in standards mode, as showing in the following code snippet.
Following web site offers online practice exams for some of the current Microsoft exams ( exams for Java, CPA hopefully will be added in the near future).
Available Microsoft exams includes
70-480, 70-482,70-483,70-484,70-485, 70-486, 70-331,70-332...