o9 Solutions Software Engineer Python Machine Learning Role interview questions

I was called for telephonic, firstly they forgot to call on decided day and later on they said, my phone was not reachable. Interview rescheduled for another day , interviewer was more interested in the subject names I took up in my postgrad and what courses I did to learn deep learning then asking technical questions on machine / deep learning . After taking interview, at night they send a rejection mail. Basic questions on python were asked no questions on data science were asked.