HomeFree Utility Tool
System Design Prep
System Design Rubric & Architecture Criteria Generator
Select a system design topic below to view exact senior/staff evaluation rubrics, key architectural pillars, and interviewer trap checks.
Distributed Rate Limiter Evaluation Rubric
Evaluation criteria for designing a rate limiting service (e.g. 100k QPS per user).
Recommended Architectural Components
- API Gateway / Reverse Proxy Middleware
- Redis Cluster with Sliding Window Counter
- Async Log Stream to Kafka
Critical Technical Requirements
- Low latency overhead (<2ms)
- Global consistency vs local node performance
- Configurable rate rules by IP / User ID
Interviewer Trap & Red Flag Checks:
- Did candidate address race conditions under high concurrency?
- Did candidate discuss fallback mode if Redis cluster crashes?
Test Your Architecture Skills in Live System Design Simulator