@rvinodh86 wrote:
... Honestly I don't understand why I failed at 150 questions the first attempt and passed at 100 questions in my second attempt:-)
The test ranges from 100 to 150 questions. The length varies depending on how well you are doing. Testing stops once it knows for sure if you will pass or fail. Kinda like the way a baseball game does not necessarily play the bottom of the 9th.
If you finished at question 150, you just barely passed/failed. If you finish at 100 questions, you passed/failed by a wide margin. I don't know the actual ranges, but think of it like this:
So in your case, it sounds like your first attempt taught you to how to more effectively study and/or take the test, resulting in a much better score. Good job.
After spending $700 and countless hours preparing using the official and plethora of recommended study materials then failing after going the distance / 150 questions I think it a fair request to disclose the "actual number of pass / fail questions" per domain.
It would also like to know exactly how the algorithm selects experimental / sample questions. Is it possible that a pseudo random algorithmic selection could choose answers that were a Pass?
@jsavlen43 wrote:After spending $700 and countless hours preparing using the official and plethora of recommended study materials then failing after going the distance / 150 questions I think it a fair request to disclose the "actual number of pass / fail questions" per domain.
It would also like to know exactly how the algorithm selects experimental / sample questions. Is it possible that a pseudo random algorithmic selection could choose answers that were a Pass?
The closest you're likely to get to knowing the ins and outs of how the CAT algorithm works can be found on the following page - particularly in the FAQ section:
https://www.isc2.org/certifications/CISSP/CISSP-CAT