Fichas
networks
Fichas del conjunto (28)
- 1What is a computer network?a group of devices that connect together
to share resources - 2Describe a LANa small geographical area that span with a network
- 3Describe a WANa large area of land covered with a network
- 4What are the advantages of a computer network?allows people to share resources around the world
- 5What are the disadvantages of a computer network?there is cyber bullying
- 6What devices are needed to produce a LAN?a router and a network interface card
- 7What is the purpose of a NIC?to allow device to connect to a network
- 8What is the purpose of a Router?to connect to an internet
- 9What is the purpose of a Hub?to send data to all devices in a network
- 10What is the purpose of a Switch?to send data to a certain device on a network
- 11What is the purpose of a WAP?to allow wireless devices to connect to a network
- 12What is the difference between a Hub and a Switch?a hub sends data to all devices but a switch sends data to certain devices on a network
- 13What is the Internet?a wide area network that allows people to connect around the globe
- 14What is the World Wide Web?an information system on the Internet which allows documents to be connected to other documents by hypertext links, enabling the user to search for information by moving from one document to another.
- 15What is the purpose of a Modem?A modem converts digital signals generated by the computer into analog signals which can be transmitted over a telephone or cable line and transforms incoming analog signals into their digital equivalents.
- 16What is the purpose of an ISP?An ISP (Internet service provider) is a company that provides individuals and other companies access to the Internet and other related services such as Web site building and virtual hosting.
- 17What is an IP address?a unique string of numbers separated by full stops that identifies each computer using the Internet Protocol to communicate over a network.
- 18What does HTTP stand for?Hypertext Transfer Protocol
- 19What is a URL?the address of a World Wide Web page.
- 20How is a URL constructed?The first part is the protocol, which tells the web browser what sort of server it will be talking to in order to fetch the URL. In this example, the protocol is http.
- 21What are the three different network topologies?bus network ,star network and ring network
- 22What are the advantages / disadvantages of a Star topology?fast and cheap/if switch or hub came down it would all fail
- 23What are the advantages / disadvantages of a Ring topology?fast and cheap / unreliable
- 24What are the advantages / disadvantages of a Bus topology?it is cheap because it doesn't need extra equipment
- 25List examples of data that need to be kept secure
- 26What is HTTPS and what is it used for?a
- 27What is encryption?a
- 28What is decryption?
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- Fichas sobre networks, creado por Michael Cook el 08/10/2018.
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- Michael Cook
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