Gartner Research Associate interview questions

HR lady called with no warning. She was very rude and has been to a few others even those who are referred by current employees. Very impatient and did not let me finish my answers or explain myself. Extremely dismissive. Just pray you get lucky and some other recruiter calls you.

Rather long, in a way that they tried to appear organized but it was as if they had no intention to hire anyone. The position had been open for 7-8 months prior to me getting a call, and then the final interview seemed like they wanted to get information about my previous organisation. How they functioned, road blocks etc. Only 1-3 basic skill question for me but that is it. The HR insisted there would be case study etc but none of that was asked. I spent a lot of time preparing. For a process which took months (from the initial HR phone call, to test, to HR prep, then the interview) I wish they could just make up their mind. Did not appreciate them wasting my time, showing no clarity and not giving the right information or responding on time.