This question already has an answer here:
I had an interview where they asked me how I would “find the intersect between two tables”. I told them I would have to look it up, but after the interview I realized I may have misunderstood the question. If two tables have different schemas this doesn’t make sense. Note, the context has nothing to do with GIS. When asked if you know something technical, how do you know if you don’t understand the question versus you don’t know the answer? What should be done if the interviewer asks a technical question that doesn’t make sense?
UPDATE: well either way I passed the interview to the next level ! :D