You may encounter some “tough?interviewers. There could be several possibilities:

　　The interviewer may have had a rough day prior to the interview session.

　　The interviewer may be opposed to the hiring of the position you are interviewing for (not likely for the case of standard entry-level program, but can happen for mid-career hiring).

　　It is “staged?to see how you react in uncomfortable or even stressful situation.

　　You must remain calm and answer the questions professionally. Be more alert and succinct in your answers.