Welcome to your interview.
The question is on your right: Convolution vs Fully Connected. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
How do convolutional layers differ from fully connected layers in terms of parameter sharing and spatial hierarchy?