Siemens Scrum Master interview questions

Highly disappointed. A leading German brand is confused about the roles in its organization. My interview was for the role of so called 'Technical Scrum master', a role that some companies who can't afford a full time scrum master have invented. I can understand they want someone with technical background to understand the projects better but asking internal working of data structures and pure java based tech questions in first round itself made me think that this company or at-least its Indian subsidiary is highly confused about the roles & responsibilities of a scrum master. I thought scrum master would be the primary role for this job profile but it turned out, they want a java developer with half cooked knowledge on scrum. Just don't go for their scrum master interviews, it would be a waste of your and panel's time as they are not really sure what they really want to hire-a developer or a scrum master.