Topologies Flashcards

1
Q

What is a bus topology?

A

Where all devices are attached to a common connection (backbone) and any communication must travel through this

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2
Q

What is at either ends of the backbone in a bus topology?

A

A server may be attached or a printer etc and at the other end is a terminator which marks the end of the network

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3
Q

What is a star topology?

A

Where all devices are connected to a single central device such as a switch or a hub which communication must go through

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4
Q

What might be connected to the central devices in a star topology?

A

Servers
Printers
Routers

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5
Q

What is a ring topology?

A

Where each device is connected to two other, for communication a device a signal often must be passed through several devices

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6
Q

What are the advantages of a bus topology?

A

Cheap as it requires minimal cabling

Easy to add / remove computers

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7
Q

What are the disadvantages of a bus topology?

A

Failure in the main cable will result in failure of the whole network

The network can be slowed by high traffic

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8
Q

What are the advantages of a star topology?

A

If one cable fails only the device attached is isolated from the network

Faults are easy to find

It’s easy to add extra devices

They system is secure because only data sent to the devices need that data

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9
Q

What are the disadvantages of a star topology?

A

Lots of cables means it’s more expensive to install

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10
Q

What are the advantages of ring topology?

A

No collisions as there is typically only one batch of data is allowed on the network at one time

Very high transmission rates are possible

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11
Q

What are the disadvantages of a ring topology?

A

Failure of a single cable / device can ring down the entire network

Data passes through other devices to its final destination so data isn’t secure

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12
Q

What is a topology?

A

The layout of a network

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