Flashcards
Networks New
Cards in this deck (16)
- 1Describe “The Internet”The internet is a collection of interconnected networks.
- 2Explain the difference between The Internet and the WWWThe internet is the hardware and infrastructure however the world wide web is the web pages and resources.
- 3The internet is the hardware and infrastructure however the world wide web is the web pages and resources.To connect to the Internet, you must be connected to a router, either by cable or using a wireless connection. You also need a Hub/switch.
- 4Describe the purpose of an IP addressAn IP address allows packets to be sent to the appropriate destination, travelling separately across the internet before being reassembled.
- 5Describe the role of a DNS serverA DNS server passes requests onto another server until it reaches one with the matching name and IP address when it receives a request that isn’t in its database.
- 6Describe HTML and it’s useHypertext Markup Language is a programming language that displays the world wide web browser page using a set of markup symbols and codes.
- 7Describe the differences between a local area network and a wide area network such as the internetDescribe the differences between a local area network and a wide area network such as the internetA LAN covers a small area such as one site or building, eg a school or a college. LANs are often connected to WANs, for example a school network could be connected to the Internet. However a WAN covers a large geographical area. Most WANs are made from several LANs connected together. WANs can be connected together using the Internet, leased lines or satellite links.
- 8Explain the advantages of networking stand-alone computers into a local area networkYou can access the files on the other computers in the local area network, so that if someone is away, the other colleagues can edit or change their work within a school or business etc.
- 9Describe the hardware needed to connect stand-alone computers into a local area networkYou need ethernet cables, a router, a server and a switch or a hub.
- 10Explain the different roles of computers in a client-server and a peer-to-peer networkClient computers are those which people use to log on to and use the services provided by the server. The “handshaking” process takes place to establish what protocol to use.
In a peer to peer. all computers have an equal status. Data can be passed between computers rather than just on a server (when in a WAN). - 11Explain the term MAC addressingEvery device has a MAC address. A MAC address is assigned to each Network Interface Card by the manufacturer. Computers often have more than one MAC address, one for the ethernet and for wireless communications.
- 12Explain the term data packet and what information is includedData packets all contain the same number of bytes. Each packet is marked with the total number of packets in the transmission and a packet number.
- 13Explain the process of packet switchingThe designated file is broken up into packets of 512 bytes, all of which are given headings: The Ip address it is going to /come from, error checking data, the number of packets in the whole communication and the sequence number of packets.
- 14Explain the term protocols and be able to describe the different type of data transferProtocols are a set of rules that govern the format of data sent over the internet.
- 15Explain the need for security measures in networks, such as user access levels, suitable passwords and encryption techniquesPasswords are needed to keep all of your files safe. Incase you are hacked, you should backup your files on a USB or a hard drive. Passwords should be a combination of upper and lower case letters as well as symbols and numbers.
- 16Describe and justify network policies such as acceptable use, disaster recovery, backup, archivingAcceptable use- You shouldn’t distribute any information about anybody without their permission.
Disaster recovery- is a set of policies and procedures to enable the recovery or continuation of technology infrastructure and systems following a natural or human-induced accident. (internet definition)
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- GCSE Computing Flashcards on Networks New, created by Abbie Goffin on 10/04/2017.
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- Abbie Goffin
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