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Data Structures & AlgorithmsComplexity analysis up to graphs and DP.Operating SystemsProcesses, scheduling, memory and concurrency.Database Management SystemsRelational modelling, transactions and indexing.Computer NetworksFrom wires and radio waves up to the web.

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Computer Networks

Foundations of Networking4

Physical Layer & Signals3

Data Link Layer6

Network Layer & Routing6

Transport Layer5

Ports, and the choice between TCP and UDP
The three-way handshake and how TCP stays reliable
Stop-and-Wait, Go-Back-N, and Selective Repeat: the classic ARQ numericals
Flow control and congestion control
Sockets, where your code actually meets the network

Application Layer & The Web4

Wireless, Security & Performance3

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Computer Networks

Foundations of Networking4

Physical Layer & Signals3

Data Link Layer6

Network Layer & Routing6

Transport Layer5

Ports, and the choice between TCP and UDP
The three-way handshake and how TCP stays reliable
Stop-and-Wait, Go-Back-N, and Selective Repeat: the classic ARQ numericals
Flow control and congestion control
Sockets, where your code actually meets the network

Application Layer & The Web4

Wireless, Security & Performance3

Learn Computer Networks Transport Layer

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Sockets, where your code actually meets the network

The programming-level handle that turns everything this course has covered into a few lines of actual code.

7 min readUpdated 2026-09-03computer-networkstransport-layersocketstcpudp