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Real-Time Protocols · medium

6. WebSockets, WebRTC & Real-Time Media

Peer-to-peer audio/video mesh and bidirectional streaming.

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- WebSockets: Full-duplex persistent TCP connection over standard HTTP/1.1 ports. - WebRTC: Real-time peer-to-peer audio, video, and data streaming using SRTP (encrypted media over UDP), ICE/STUN/TURN for NAT traversal, and SDP (Session Description Protocol) for codec negotiation.

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  1. 1. What protocol is used by WebRTC to discover public IP mappings through NAT firewalls?

  2. 2. Which transport protocol does WebRTC use for low-latency encrypted media streaming?

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