if we memorize questions from CAT or Bristol, we have %80 percent to give each exam...is it true?
Probably. The ATPL's seem to have just become a cash sink but at least its fair now, it used to be only those who had contacts had a copy of the question bank but now everyone can use it.
I remember the CAA saying they were going to clamp down on it and prosecute people for cheating but it never happened. I think if they are going to continue to allow this, then we should switch to the FAA system of open question bank and 1 ATPL exam...and not charge £750 for the privilege!
However, that said. If you have only studied the question bank you will look a bit silly at an interview.