Your question is Design a Rate Limiter. 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).
Design a Rate Limiter
Asked in the R1: System Design - HLD stage. HackerRank whiteboard; candidate defined functional and non-functional requirements, APIs, entities, load balancer and database tracking, then discussed scaling with API Gateway and Redis. Reported follow-ups: How do you handle failures or the DB being down? How would this scale to a distributed system?