I appeared for the 1.5 exam yesterday and passed with 90%. Much to my surprise number of questions for the exams were 82, instead of 72. When I asked about it to the Pro-metric center authority, she said the the no. of question are now 82 from today and even she was not aware about it. However the positive thing to this is that the time also was scaled up.
Also a much irritating fact about the exam software was, if you mark a Drag n Drop question and re-visit it, the answer you had attempted earlier gets cleared off; it does warn you about the same, but it is disgusting that the answers one has attempted don't get retained. From my experience I would suggest one should attempt the Drag and Drop questions once with proper thought instead of marking it and revisiting them.
As part of our exam refresh process, SUN occasionally tests new questions on the live exam forms. These questions are tested to understand their statistical properties and will not be counted as part of your final score. There are 10 unscored questions in this exam. Forty extra minutes have been added to your exam duration to allow you ample time to answer all questions.