Checkmarx First Line Support Engineer interview questions

The First round was good, the person was so humble and was respectful while taking a quick telephonic interview The second round was a 60 minutes video interview round which was done by a Manager, he started to ask me about some technical knowledge which is not known to me even though JD clearly mentioned that those technologies are good to know, as i did not know certain answers, he started to give a creepy sarcastic smile. My morale was shot down in an instant and the things which i knew and worked on went blank due to his actions and i could not answer him further to his questions, his face was like he was winning a contest and i felt humiliated, I dont care about any rejection emails i get from them, but if you are going to take an interview, I would suggest the checkmarx management to atleast show respect to the candidate even if he/she does not know something and is willing to learn from it.