Design Zoom (Video Conferencing)
Hard · System Design · about 45 minutes
Asked at Zoom, Microsoft, Cisco, Google, Meta, Slack.
Design a video conferencing service like Zoom. Participants join meetings from any device, send and receive audio and video with under ~200ms of delay, share screens and chat, in meetings from 1:1 up to ~1,000 people. Assume ~10M concurrent participants at peak and networks that drop packets.