Answer:
unstructured interview
Step-by-step explanation:
Unstructured interview involves asking questions that are not pre-arranged beforehand. The interviewer asks questions at his discretion to find out job related traits in the applicant.
This approach however can lead to legal issues as the interviewer may not know the implication of asking some questions that are not legally accepted for interviews.
Unstructured interviews are usually informal and like an everyday conversation. Probe questions are used to open candidates up as much as possible.