Designing a movie ticket booking system: the low-level design interview, explained

Low-level design interviews frequently utilize rate limiter and movie ticket booking system prompts to test specific technical skills. Designing a rate limiter evaluates object-oriented design, requiring extensible class models that handle high-frequency requests across multiple servers. Conversely, movie ticket booking systems test concurrency management to ensure two users cannot book the same seat simultaneously. Both exercises move beyond simple data modeling, challenging candidates to implement robust logic for distributed systems and high-traffic synchronization requirements.