Perguntas de entrevista de vagas de IOS Software Development Engineer da empresa Booking.com

Skype call where I was asked to some OOP questions about retain, atomic and none atomic objects then had a technical question to implement a stack protocol. The interview was about nothing but OOP mainly and a little of iOS developing, no Software Engineering or any thing else was asked. This is quit depressing since I was expecting something more .. of software engineering related that software development only.