The NPPE exam is not easy. It is not an exam that you can pass just by appealing to your intuition and common sense or solving a single mock test in the format and length of the official exam. It is a challenging examination that requires a significant investment of time and effort to prepare for. You need to become conversant with many intertwined concepts, principles, and theories. The exam will test your memory of them in a few instances, but it will mostly test your ability to apply them to real-life junctures presenting you with some hypothetical scenarios or problems. Nevertheless, with proper preparation, the NPPE exam can be a manageable challenge.