If your knowledge were relatively good and confident to be> 50% of the exam, I can learn PEN-I and refer to one of topical that you feel you are not strong in PEN-C.
And if My knowledge was not the system, not necessarily, or even take root, I should learn PEN-C before, PEN-I later learned not too late offline;)
đang được dịch, vui lòng đợi..
