System Design · Senior · Question 70 of 75
A service handles 1,000 requests/s with an average latency of 200 ms. How many requests are in flight on average?
- ✓Correct answer: About 200 (Little's law: L = λ × W)
- 21,000
- 35
Explanation
This sizes thread pools and connection limits. If latency doubles at the same load, concurrency doubles too.