What are interviews required?
All the applicants were interviewed one by one.
One should prepare for a job interview in a relaxed manner.
You should know what you are looking for in a new job.
They really put you through it (ie ask you difficult questions, etc) at the interview.
It will be worse if your brash answers annoyed the interviewers.
At the interview you will want to show that you know the Company.
Don't maintain good eye contact with the interviewer.
Do your company research at the interview by asking, "What do you guys do here?"