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← Theory library
Networking & Protocols theory
OSI/TCP-IP stacks, BGP/OSPF, QUIC/HTTP-3, P4 language, and 5G SA Core.
Practise in the Code Lab →
Easy
1. The OSI 7-Layer & TCP/IP 4-Layer Models
Encapsulation, decapsulation, and protocol stacks.
Medium
3. Modern Transport: QUIC & HTTP/3
Eliminating head-of-line blocking over UDP.
5. Telecom Evolution: 2G to 5G Standalone & O-RAN
Cellular architectures, packet cores, and network slicing.
6. WebSockets, WebRTC & Real-Time Media
Peer-to-peer audio/video mesh and bidirectional streaming.
Hard
2. Routing Protocols: BGP & OSPF
Autonomous Systems and the core routing fabric of the global internet.
4. P4 Language (Programming Protocol-Independent Packet Processors)
Domain-specific programming for software-defined data planes.
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