Welcome to your interview.
The question is on your right: First-Touch vs Multi-Touch Attribution. 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 difference between first-touch and multi-touch attribution models, and when would you use each?