Welcome to your interview.
The question is on your right: Understanding the OSI Model Layers. 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.
Explain the OSI (Open Systems Interconnection) model and detail the function of each of its seven layers. Why is the OSI model important in networking and software design? What are the primary responsibilities of each layer?