Do not accept the online interviews from the employer. They set you up in the online interview as a genuine recruitment Excercise and after you give interview the final feedback is rejected. The entire online interview is a hoax. They want to learn from the candidates the industry knowledge or want to have a check on competitors just to improve their position in the market. Before the actual interview, the HR who is facilitatinbbghe interview will show off as she cares for you and she wants to help you Crack the interview. But all that is a set up