Your question is Secure Password Storage. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How would you store user credentials securely? Discuss password hashing, salting, and why plain hashing is not sufficient.
Asked in the Technical, senior engineer stage. Keep your answer focused on how you would design password storage, what attack it defends against, and how you would verify the implementation is safe.