Welcome to your interview.
The question is on your right: Responding When They Already Have Tools. 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 are calling a PR Director; they tell you they already have a monitoring tool. How do you respond?