My interviewers were 2 ISB alumni. The interview was very conversational.
Some things that were discussed during the interview -
- A brief of my background in engineering and experience in the development sector.
- Explanation for gaps in my work experience.
- Explanation for why I have worked part-time.
- Motivations that drive me at work.
- Who/what influences me.
- Question about leadership skills from one of my essays.
I asked them a couple of questions after about time folks get to dedicate to pet projects/clubs.
The entire conversation lasted about 40 minutes.
Hope this helps.