Flashcards
Computer Science
Cards in this deck (27)
- 1Define PANPersonal Area Network
A connection of devices used by an individual person, usually connecting computers and peripherals together. - 2Define LANLocal Area Network
A connection that covers a small area such as one site or building - 3Define WANWide Area Network
Covers a large geographical area.
Typically connect 2 or more LANS - 4Order of TCP/IP stackApplication
Transport
Network
Data Link - 5Define SwitchA device that allows the interconnection of multiple devices
- 6Define RouterProvides connection to internet
- 7IP AddressInternet Protocol
An address so the router knows where to send the data over the internet - 8MAC AddressMedia Access Control
An address used by the switch when sending data over a LAN - 9Define ProtocolA set of rules that govern how a computer should communicate across a network
- 10TCP/IPTransmission Control Protocol / Internet Protocol
TCP breaks data into pieces called packets.
IP makes sure each packet is sent to the correct place
TCP then reassembles packets on the receiving end - 11UDPUser datagram protocol
Uses IP to direct where data should go and is designed to do so as quickly as possible.
Does not guarantee data delivery - 12HTTP(s)Hypertext Transfer Protocol (Secure)
Used to transfer web pages from a server to a client.
Transmitted data is encrypted on HTTPS and as such is more secure - 13FTPFile transfer protocol
Governs transfer of files across the Internet. - 14POPPost Office Protocol
Allows you to download emails from a server - 15IMAPInternet Message Access Protocol
Synchronises devices that access email - 16SMTPSimple Mail Transfer Protocol
Moves emails from server to server to server - 17WiFiA set of rules governing how devices communicate wirelessly
- 18EthernetA set of rules that govern how wired devices communicate
- 19Data Protection Act 1998Ensures data is stored securely
- 20TCP/IP StackApplication
Transport
Network
Data Link - 21What Is At The Application LayerFTP
HTTP
HTTPS
SMTP - 22What Is At The Transport Layer?TCP
UDP - 23What Happens At The Network Layer?IP
- 24What Happens At The Link Layer?WiFi
Ethernet - 25Bus NetworkA single connect all the computers together. A signal is sent from one computer along the cable.
Terminators are at the end of the cable to stop signals bouncing around. - 26Star NetworkEach computer is connected by it's own cable directly to a switch in the centre.
- 27Ring NetworkEach device is connected to two other devices. This form a ring for the signals to travel around.
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- Year 11 Computing Flashcards on Computer Science, created by Ben Donovan on 30/04/2018.
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- Ben Donovan
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