Siemens Java Cloud Engineer interview questions

I was contacted by a recruiter over mail. There was a hackerearth questions with 9 MCQs and 1 coding challenge. After completing that I was asked to give an interview virtually (online meeting) since the offices are shutdown due to COVID-19. In the interview he asked me some OOPS concepts and a question where I got stumbled but gave the answer. Not sure why but the interviewer just said "I'm done, do you have any questions to ask". Whole process ended in just 5 mins without asking any other questions. A note to the company with all due-respect: Please spend some time to understand the candidate's skills and the technologies that he has worked upon, may be that would a turning point, there might be some concepts which either of you know or don't know but it doesn't decide if he/she is suitable for this role.