Welcome to your interview.
The question is on your right: Explain TF-IDF Usage. 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.
You're working on a basic NLP pipeline where you need to turn raw text into numeric features for a downstream model. A common option is TF-IDF, especially when you want a simple and interpretable representation.
What is TF-IDF and when would you use it?