Welcome to your interview.
The question is on your right: JavaScript Event Loop and Async. 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 does the event loop work in JavaScript, and how does it relate to asynchronous programming?