It was neither hard or easy and the interviewer was very kind and friendly. I have not asked any question that I can not answer. What I can suggest is that be yourself.
I applied online. I interviewed at Otokar (Arifiye)
Interview
It was quite professional. First, I had a 10-minute phone interview with hiring manager. Later, I went to Sakarya and met with Team Leader and Manager. They were really nice. Questions were related to my classes and my CAD knowledge.