What is the innovation of the thesis?

Is XXX theory appropriate here?

How did you approach the topic for your research?

Generally, during the defense, the teacher will ask some questions about the relevant specialty or will ask where the starting point of the dissertation topic is.

The thesis defense is an important form of more formal review of the thesis that is organized, prepared, planned and appraised. In order to conduct a good thesis defense, before the defense meeting is held, the university, the defense committee, the respondent (the author who wrote the thesis) all three parties should be fully prepared. At the defense meeting, the examiner has to find out desperately whether the level of performance shown in the thesis is true or false. And the student has to prove not only that his arguments are right, but also that the teacher is wrong.