Your question is Design a High-Traffic URL Shortener. 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 design a scalable and efficient URL shortening service like Bit.ly, considering high traffic, data consistency, and low latency requirements? Outline your approach, including system architecture, database design, and strategies for handling potential bottlenecks.