Flashcards
A - LAN WAN & VN
Flashcards do conjunto (6)
- 1LANLocal Area Network is a network which connects two or more computers/machines within a fairly close geographical area, e.g. a single building or nearby buildings.
- 2Characteristics of a LAN> Computers are within a small geographical area
> Each device is connected via a network card or a wireless card
> Connected via its own dedicated cables (or wireless device) - owned by the organisation
> Often has shared peripherals, e.g. printers - 3WANA Wide Area Network allows computers to be connected over a large scale.
- 4Characteristics of a WAN> Computers are not close together
> External communications equipment are used to connect computers, e.g. telephone line, leased line, mobile phone
> A modem, router or other device is needed to connect to the WAN - 5Virtual NetworkA VN allows computers to communicate with each other as if they were an individual LAN, but without knowing that they may be part of a bigger network. A VN could exist within a single LAN so that a set of computers could only communicate with each other, despite there being other physical connections
- 6Characteristics of a Virtual Network> Shares the network hardware & cabling with the LAN
> Computers of the VN cannot access anything of the users that are not on the VN, and vice versa
> Easy to maintain the network
> Very flexible - devices can be removed or added to the VN without having to re-write them
Informações
- Descrição
- A Levels ICT (3 - Networks & Communications) FlashCards sobre A - LAN WAN & VN, criado por ayoub_sebtane em 26-11-2014.
- Criado por
- ayoub_sebtane · nov 2014
- Atualizado
- 19 fev 2016
- Visualizações
- 15
- Avaliação