Which device is known as concentrator?

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Answer:

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.

Related Questions:

Which of the following statements are true?

1.In a ring network, every device has exactly two neighbors for communication purposes.

2.All messages travel through a ring in the same direction i.e either “Clockwise” or “Counter clockwise”.

3.Failure in any cable or device breaks the loop and can take down the entire network