#System Design

Discuss how to ensure the correctness of a system operating in a concurrent environment, detailing concurrency issues and solutions.

Design a rate limiter that allows a maximum of 5 requests per user per minute.

Design a system for Zomato that includes identifying all entities, defining their relationships, outlining the happy flow, planning data mocking, and detailing the end-to-end testing strategy.

Design the frontend for an Airbnb search listings page. Describe the component hierarchy including filters, list, map, and pagination. Where does the state live? Discuss how you would handle loading and error states, pagination vs infinite scroll, caching search results, and performance optimizations for large result lists.

Design a database schema for a system that manages entities with multiple stages, evaluations, and results over time, supporting repeated attempts and outcomes at different stages. Discuss your design choices and any trade-offs involved.