I don't understand how this is coming back again...you can trick a recrutier, but definitely can't trick a field expert, if we talk about SAP CRM, the question wouldn't be like, do you know BOL? What is web client? etc. Instead Which challenges did you face and how did you solve it?, and for this you don't need to show how good is your memory....
I recommend build a honest resume and prepare your interview according to your experience and assume there will questions which maybe you are not able to answer, and in some cases that's very logic, you can't know everything my friend, but definitely, if you feel you are not prepared for it, don't waste your and other peoples time.
BTW nice to see you here Nick