ServiceNow Senior Software QA Engineer interview questions

After initial discussion of 5 mins, called for face to face interview. Went to the office, but the interviewer himself was not in office. Had to wait for 30 mins until someone else started interviewing me. He did not have my resume too. He started asking algorithm question without even patience to listen to answer and was expecting only the answer he has in mind - even though it was later explained that it will inefficient one. The second interviewer started laughing at my name because he did not hear this name before. Also started asking me question which was not relevant to the position's requirement by a novice. When heard that I do not have experience in that area, he started laughing. Third round was from a experienced manager, who kept yawning during the interview.