what is the point of a network switch
Network switch A switch is a device in a computer network that connects together other devices. Multiple data cables are plugged into a switch to enable communication between different networked devices. Switches manage the flow of data across a network by transmitting a received network packet only to the one or more devices for which the packet is intended. Each networked device connected to a switch can be identified by its network address, allowing the switch to direct the flow of traffic maximizing the security and efficiency of the network.
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Marcus Álvarez
Limit of a function (the Dirichlet function) has no limit at any x-coordinate.