One of the worst experience in my entire life, interviewer itself was confused on questions that he was asking. For most of the question, i was pretty confident that i have provided correct answer, but according to him, they were all incorrect. So, just to make sure, i verified every other question asked from internet sources after and found that i had given correct answers. It felt like they didnt want to hire me at the first place and someone is putting pressure on them to conduct an interview. You need to hire better resources for your company, someone knowledgeable and experienced person will help you in conducting interviews.