Preguntas de entrevista para el puesto de Software Developer en Pactera

I go through from agency . I got phone call interview invitation after 1 week. It is very easy and short interview. The interviewer is not a tech person . So They only ask questions about your previous jobs. It was about 20 minutes phone call interview. It was too short .So I thought I wouldn't pass it . Then A week later ,they gave me an offer.

3 Easy Telephonic rounds on phone only. Nothing difficult. Before interview one type of job role would be explained & after interview another role will be depicted. Very confusing.