You can say I'm not really clear about the concept, do you mind to share with me regarding the concept, so I can try to answer your question. Even if your answer is wrong, the interviewer won't mind as long as you tried and willing to learn.
You can say I'm not really clear about the concept, do you mind to share with me regarding the concept, so I can try to answer your question. Even if your answer is wrong, the interviewer won't mind as long as you tried and willing to learn.