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CCNA Tutorial

What is a network? CCNA Tutorial

A computer network can be described as a system of interconnected devices that can communicate using some common standards (called protocols). These devices communicate to exchange resources (e.g. files and printers) and services. Here is an …

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What is Ethernet? CCNA Tutorial

Ethernet is the most used networking technology for LANs today. It defines wiring and signaling for the Physical layer of the OSI model. For the Data Link layer, it defines frame formats and protocols. Ethernet is …

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