The questions on PM-Prepcast seem to be harder than the ones on the exam. If you can do well and understand the reason behind the answers in the simulation, one should be able to scale through the PMP exam.
One point I had in mind when answering the question was, the answer should be objective rather than subjective. That is to say that in every situation, all practitioners should be able to make the same choice in whatever situation presented in the question. It helped me eliminate answer choices that were irrelevant to the question and improve my precision.
Now it is left for me to secure a job.
Al the best and thanks.