What are Switched Communication Networks ?

Switched communication networks are a foundational concept in computer networking, serving as the backbone for the exchange of data between devices. These networks enable efficient and organized data transmission by employing switches, which are devices that operate at the data link layer (Layer 2) of the OSI (Open Systems Interconnection) model.

At its core, a switched communication network is designed to facilitate the transfer of data between multiple devices by establishing dedicated communication paths, known as circuits or channels, through a shared network infrastructure. This method of communication contrasts with earlier approaches like circuit-switching, where a continuous physical connection between sender and receiver was required for the entire duration of the communication.

Switched networks employ two main types of switching techniques: circuit switching and ________ ___ __________ _____ _________ _____ ___ ______.
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