A search firm representative or a Human Resources person usually conducts this type of interview. Screening interviews may be conducted over the telephone or in person. The purpose of this interview is to decide whether or not the candidate has the skills necessary to perform the open position — it is not used to determine who the best candidate is.
The interviewer has specific questions to ask. These questions are designed to collect facts to report back to the hiring manager. Attempt to identify what information the interviewer is looking for. Candidates must provide clear and concise answers. Always try to be positive — negative answers tend to produce greater probing and doubts in the mind of the interviewer. Don't offer additional information unless you are sure it will help.