what is uplink?

Answer Posted / asisth minj

Technical term for data transmission in the direction from
the subscriber to the network, or rather back to the
provider or Internet provider. Also called back channel .
The opposite transmission direction, the 'transmission
channel', is called the 'uplink' in technical jargon.
OR
A connector on a LAN hub to link a hub or a subnetwork to a
port on a second hub. Some hubs have a separate port for
uplinking

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