Which device is known as concentrator?
AHub
BSwitch
CRepeater
DGateway
Answer:
A. Hub
Read Explanation:
Hub
A device used to connect computers and other devices in a wired network.
Data arriving at one port of the hub is copied to all other ports of the hub.
A hub is also known as a concentrator.
Since all data is sent to all devices in a network, the network becomes congested and the bandwidth for data transfer decreases, which is a disadvantage of the hub.