Network Technologies

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Distinguish between a LAN and a WAN
A LAN is spread over a small geographical area, such as a building or an office. A WAN is spread over a large geographical area and requires a telecommunications link to allow computers on the network to communicate.
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Distinguish between the internet and the intranet
The internet is an example of a WAN, which allows information to be passed between computers linked to a global network. An intranet is a private network set up as a secure website, owned and managed by an organisation.
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Describe three ways you can make use of the 'internet of things' in your everyday life.
We can make use of the IoT by using a fitness watch which can collect biological data. You can use apps to control heating and you can connect to the internet through built-in sensors using Wi-Fi.
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State two features of Wi-Fi technology.
Wi-Fi connections are made possible through radio waves and a wireless router. Home networks need protected by the user needing to type in a password.
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State one advantage and one disadvantage of using fibre optic as a communications medium.
Glass strands can't be interfered with by hackers, meaning data security is very good. It is very expensive to install optical-fibre technology.
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Name and describe three network resources.
A NIC needs to be installed in a computer to enable it to be connected to a network. A switch is a hardware device which is a single connection point for computers on a network. A router is a hardware device which connects networks by cable.
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Describe the main features of a bus network.
All computers are connected to a main cable known as a backbone. Data can travel in both directions.
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State two advantages and two disadvantages of using networks.
Computers can be linked together and share resources. If the network fails the whole system fails and a standalone computer is not connected to a network.
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Other cards in this set

Card 2

Front

Distinguish between the internet and the intranet

Back

The internet is an example of a WAN, which allows information to be passed between computers linked to a global network. An intranet is a private network set up as a secure website, owned and managed by an organisation.

Card 3

Front

Describe three ways you can make use of the 'internet of things' in your everyday life.

Back

Preview of the front of card 3

Card 4

Front

State two features of Wi-Fi technology.

Back

Preview of the front of card 4

Card 5

Front

State one advantage and one disadvantage of using fibre optic as a communications medium.

Back

Preview of the front of card 5
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