Hard Design: Chat System (WhatsApp/Slack)

How many WebSocket servers are needed for 100 million concurrent connections, if each server handles 50,000 connections?

— Tests your understanding of this concept.

Answer Options

A 1,000 servers

B 2,000 servers

C 5,000 servers

D 10,000 servers

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This question is from the Design: Chat System (WhatsApp/Slack) topic (System Design Cases).

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