Zynga Interview Question: Suppose you need a chat syste... | Glassdoor

Interview Question

Principal Software Engineer Interview San Francisco, CA

Suppose you need a chat system with 10M concurrent users

 , with a dense adjacency matrix. How would you implement a presence and chat system that scales to that kind of user base? Discuss tradeoffs among reliability, complexity, latency, and cost.
data structures, web dev

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