Karteikarten
Computer networks: LAN, WAN and networking devices
Karten in diesem Stapel (17)
- 1What is a computer network?A computer network is two or more devices connected together to share resources and data.
- 2Describe a LANA LAN (Local Area Network) is a network that connects computers and other devices in a small geographical area. For example, a printer.
- 3Describe a WANA WAN (Wide Area Network) is a network that connects computers and devices in a large geographical area. For example, telephone lines.
- 4What are the advantages of a computer network?You can keep in contact with people from all over the globe. Also, you can use the internet wherever you go.
- 5What are the disadvantages of a computer network?You get foreign companies getting in contact with you and trying to persuade you to buy their items. Furthermore, Scammers try to get your bank details by pretending to be your bank and say that there is a problem with your account and you need to enter your details to ‘switch’.
- 6What devices are needed to produce a LAN?You need: a network interface card, a router, a wireless access point and a hub/switch.
- 7What is the purpose of a NIC?A NIC (Network Interface Card) is needed to be able to connect to a network and is needed y all devices on a certain network.
- 8What is the purpose of a router?A router is needed to support wired or wireless connections and a home and business may use this device to connect to connect their network to another network such as the internet.
- 9What is the purpose of a Hub?It has multiple ports to connect computers into and is used to physically link computers using cables.
- 10What is a purpose of a Switch?It connects electronic devices together and sends data to specific devices on a network.
- 11What is the purpose of a WAP?A WAP (Wireless Access Point) is needed to allow wireless devices to connect to a network and they convert data from cables into wireless signals.
- 12What is the difference between a Hub and a Switch?A Hub connects electronic devices together and sends data to all devices on a network and is cheap and simple whereas a Switch connects electronic devices together, sends data to specific devices on a network, is a more advanced version of a hub and is fast and efficient.
- 13What is the internet?The internet is a global computer network that provides information and ways of communicating.
- 14What is the World Wide Web?The World Wide Web (WWW) is a collection of web pages found on the network of your computer.
- 15What is the purpose of a Modem?A modem converts digital signals generated by the computer into analogue signals which can be transmitted over a telephone or cable line and transforms incoming analogue signals into their digital equivalents.
- 16What is the purpose of an ISP?An ISP (Internet Service Provider) charge a fee to provide a service for accessing and using the internet. E.g. BT, EE, Virgin Media, Sky, Talk Talk etc.
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- Karteikarten am Ohne Titel, erstellt von Isabel Aydon-Butler am 08/10/2018.
- Erstellt von
- Isabel Aydon-Butler · Okt 2018
- Aktualisiert
- 15 Okt 2018
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