Hard Design: Ride-Sharing Service (Uber/Lyft)

What communication protocol is used to push driver location updates to the rider app in real time?

— Tests your understanding of this concept.

Answer Options

A HTTP polling every second

B Server-Sent Events (SSE)

C WebSocket bidirectional connection

D MQTT protocol

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This question is from the Design: Ride-Sharing Service (Uber/Lyft) topic (System Design Cases).

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