Project Clerk applicants have rated the interview process at UNDP with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 72.6% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
I was contacted by phone two weeks after the vacancy closed. And the interview schedule was a week after that call. For general the questions are about working experience, and some skills related to the post.