Behavioral interview. Questions on how to resolve problems and work place challenges. There are courses on this. Don't show up for a job interview thinking that your MSC and PHD will get you to answer all the questions or get you the job. There are 3000 others applying and you need to show personality in line with the UN statute. It's online, read it
Interview questions [1]
Question 1
Experiences from other jobs. Examples, challenges and solutions