Summary of computer network final and postgraduate review knowledge points

computer network isHierarchical learningAccording to most textbooks, it is divided into a five-layer structure of physical layer, data link layer, network layer, transport layer, and application layer. The main learning content is the protocol and equipment of each layer and the characteristics of each layer.
It is best to have a general understanding of computer network knowledge, so that it looks smoother.

Click on the headings below to learn in layers:

Network Overview

physical layer

data link layer

Network layer

transport layer

application layer

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