IBM AWS Fullstack Developer interview questions

First was a screening round. HR informed there would be assesment and she will be sharing the invite ,2 days later she shared invite late night . Technical round scheduled without my consent and asked me whether i joined .when i informed about the situation he asked me to take the interview same day itself and i took up the interview . I had informed i have no prior experience in AWS and still the interview was expecting some knowledge on it and I think he rejected me for same reason.