The MVC question is probably for candidates who have some experience in developing software. Not knowing it does not mean you are unfit for developing software.

The MVC question is probably for candidates who have some experience in developing software. Not knowing it does not mean you are unfit for developing software. But, even if you have a little experience, you should probably know about MVC, even if you have never used it. This shows that you have familiarity with current technology. Not being familiar with current technology is definitely bad. If you are applying for a beginner position, not knowing about MVC should not be a big minus. You will only be tested on algorithms and data structures. If you don't know the answer, it is better to inform the interviewer of that and inform them of the topics you know about.