I 100% agree with Harry's answer. None of the questions that you see in the PrepCast Simulator will appear on the exam.

It is very likely that you will see similar questions or questions about the same topics.

But none will be the same.

Francois,

The percentage of questions on the Prepcast exam that will appear on the "real" (i.e. PMI) exam is exactly zero. The Prepcast is an exam simulator and contains questions of the type that will appear on the PMI exam in the same ratio as defined in the Exam Content Outline. Also, the actual questions contained in the PMI PMP Test Bank is a closely guarded secret.

to be honest, after finishing the quiz questions, i really understand the whole concepts of the PMP.
but now to get to the exam, what is the % of the questions included in the 4 prepcast exams that will appear in the real exam ?