Star Topology | 3.1 | OCR GCSE Computer Science | J277

8 flashcards

Network topology

The layout of computer systems on a network.

Star topology

A network topology that involves all nodes (devices) connected to a central switch.

How does a star topology work?

1. Data is sent to the switch in the centre of the network. 2. The switch forwards that data directly to each node using their unique MAC addresses.

What central hardware could a star topology also use?

A hub.

Advantages of star topology

- If a device fails or a cable disconnects, the rest of the network is unaffected. - The switch can monitor and control transmissions on the network.

Advantage - How can you add new nodes to a star topology network?

Very scalable - it's easy to add new nodes to the network via the switch.

Advantage - Why are data transfer speeds fast in a star topology?

Because there are very few data collisions.

Disdvantages of star topology

- In wired networks, wiring can be expensive. - Extra expensive hardware (the switch) is required to be purchased. - If there is a problem with the switch or hub, the whole network is affected.