Informatica interview questions

The hiring manager did not know what to ask. they kept asking irrelevant questions. Did not receive any rejection email from HR after the interview (I had to call and ask them for feedback).

i gave 4 online and 1 face to face interview but was refused in the 6th round since the first round was technical assesment later in the interview they asked easy and medium level question all based on cse btech course and it was pretty smooth but the fact of rejecting me was unclear since only two finalist where left after 6 rounds i it took 8 long hours to give all the interviews.