Welcome to your interview.
The question is on your right: Symmetric vs Asymmetric Encryption. 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.
Can you explain the differences between symmetric and asymmetric encryption, including how the keys work, the tradeoffs between them, and when you would use each one?