Welcome to your interview.
The question is on your right: Script to Check Server Liveness. 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.
Given a file containing a mix of IP addresses and domain names, how would you write a Python script to check if each server is live?