Is it necessary to give all correct answers in an interview to get selected?

he will try to understand your logical thinking ability to know whether you will be able study the topics you didnt answered if he give you an opportunity in the company.

Is it necessary to give all correct answers in an interview to get selected?

In software field. It depends upon the interviewer.

If interviewer is not that much skilled and he has some ego also then

  1. He will be having a set of questions and answers downloaded from internet.
  2. If you did not give the correct answer, he will not select you.
  3. He will think like you need to know everything to get selected for this job.
  4. If you say ‘I dont know', he will be unhappy.

Interviewer is skilled and doesnt have ego

  1. He will ask questions from his daily experience.
  2. He will ask questions which are important to know to apply to projects.
  3. If you didnt give a correct answer, he will try to understand your logical thinking ability to know whether you will be able study the topics you didnt answered if he give you an opportunity in the company.
  4. He knows everything cannot be learned by everyone.
  5. For him rather than correct answer, logical answer is needed.
  6. If you say ‘i dont know' he will be happy.