NIST International School interview questions

There were 3 rounds of interview: 1st - with the dep't head 2nd - with dep't head with another senior level employee 3rd - with all with HR meaning I was asked to undergo 1st interview with the head of dep't in skype. It was simple but technical. then he asked for a 2nd interview with his colleagues. It was little hard coz many were too specific but I was able to deliver. and the last one was easy because it was mainly for HR. So personal and professional mixed.