Hello Praveen, I don't think there is such an option. I think each full exam has a fix set of question (just the sequence change when you do the same exam again). Meaning that the full exam will/can also show you questions you might have seen in the quiz before.
You are right within the quiz you can set an option only to see new or previously answered wrong questions.
You can also do four 1h quizzes in a raw to "simulate" a real exam with new questions only. You just have to sumup the results of each quiz