Chapter 120m
Architecture & fundamentals
Certification: Architecture & Fundamentals
This section tests your understanding of LiveKit's core architecture — the infrastructure layer that powers every voice agent, video call, and real-time application. You must understand WebRTC, the SFU model, rooms, participants, tracks, and how they compose to build real-time systems.
WebRTCSFURoomsParticipantsTracksCodecs
Certification exam
Each question tests a concept you would need to explain to a client or use in a system design discussion. There are no trick questions — the goal is to verify deep understanding, not memorization.
Test your knowledge
Question 1 of 5
A client asks: 'Why does LiveKit use an SFU instead of peer-to-peer WebRTC for voice agents?' What is the correct explanation?
Concepts covered
WebRTCSFURoomsParticipantsTracksCodecs