Welcome to your interview.
The question is on your right: Threat Modeling for IoT Devices. 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 how you would approach threat modeling for a new smart-home IoT device prior to its manufacturing phase. What steps would you take to identify potential security vulnerabilities? What factors would influence your assessment of risks?