Discuss the role of the HUB. Differentiate between Active Hub and Passive Hub.

Discuss the role of the HUB. Differentiate between Active Hub and Passive Hub.
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1 Answer

Answer :

HUB: Hub is a connecting device; it is also known as multiport repeater. It is normally used for connecting stations in a physical star topology All networks require a central location to bring media segments together. These central locations are called hubs. A hub organizes the cables and relays signals to the other media segments. 

There are three main types of hubs: 

1) Passive 

2) Active 

3) Intelligent


Active Hub
Passive Hub
1. They are like passive hubs but have electronic components for regeneration and amplification of signals.
1. A passive hub simply combines the signals of a network segments.
2. by using active hubs the distance between devices can be increased.
2. A passive hub reduces the cabling distance by half because it does not boost the signals.
3. The main drawback of active hubs is that they amplify noise along with the signals.
3. Passive hubs do not amplify noise. 
4. They are much expensive than passive hubs.
4. They are not much expensive.

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