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OCR GCSE Computing > Networking > Flashcards

Networking Flashcards

1
Q

Cascading style sheet

A

A sheet separated from the HTML document used to define the look and feel of websites
CSS allows multiple pages to have the same style formatting

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2
Q

Compression

A

The reduction of the size of a file by applying algorithms to store repeated data

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3
Q

Client

A

A program or computer that makes a request of the server and receives the data

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4
Q

Client-server relationship

A

The relationship between client and server

The paradigm model of modern network computing

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5
Q

CSS

A

Cascading style sheet

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6
Q

Data packet

A

A small collection of broken down data, sent across a network, that finds the quickest route to its destination and is then reassembled at the other side

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7
Q

Declaration blocks

A

Rules within a style sheet that define the values to be applied e.g. Colour and size

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8
Q

DHTML

A

Dynamic hypertext markup language

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9
Q

Dynamic hypertext markup language

A

A form of HTML used for animated and interactive websites with content that can be automatically refreshed or streamed

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10
Q

Dial-up

A

A type of modem
Accesses internet via public telephone network
Relatively low speeds compared to broadband

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11
Q

DNS

A

Domain name server

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12
Q

Domain name server

A

A protocol that returns IP addresses for website addresses and domain names searched by a client

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13
Q

Domain name

A

A unique name on the internet that represents an organisation or website

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14
Q

Dynamic IP

A

A temporary IP address that is assigned each time a device connects with the Internet

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15
Q

Extendible markup language

A

A standard for describing data type that uses similar tag structure as HTML
XML is tidier and runs more efficiently on smaller devices such as mobile phones

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16
Q

GIF

A

Graphics interchange format

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17
Q

Broadband

A

Type of modem

Offers high-speed transmission of large amounts of data along a single cable

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18
Q

Graphics interchange format

A

A lossless bitmap format suitable for images with a limited number of colours, such as logos

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19
Q

HTML

A

Hypertext markup language

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20
Q

HTML elements

A

The words within HTML tags

E.g. Title is element in

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21
Q

HTTP

A

Hypertext transfer protocol

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22
Q

Hypertext markup language

A

The language in which websites are written, using tags and elements
It provides a universal format that describes design and layout and enables browsers to interpret and display content

23
Q

Hypertext transfer protocol

A

A data transfer protocol that defines how data is formatted and transmitted between websites and computers

24
Q

Internet

A

The worlds largest WAN
Consists of huge collection of computer networks
Enables people all over the world to send and receive data electronically

25
Q

Internet protocol

A

A set of rules that enable computers to send and receive data from a server

26
Q

Internet service provider

A

A company that provides Internet access, usually at monthly rates

27
Q

IP

A

Internet protocol

28
Q

IP address

A

Unique address assigned to a device that distinguishes it from others and enables it to communicate with other devices via the Internet

29
Q

ISL

A

Internet service provider

30
Q

Joint photographic experts group

A

A file type that uses lossy compression to store bitmap images

31
Q

JPG or JPEG

A

Joint photographic experts group

32
Q

Lossless compression

A

Compression method that ensures the restored file will be exactly the same as the original
No loss of data
Won’t be as small as lossy, but better quality

33
Q

Lossy compression

A

Compression method that gives very small compressed files but loses some data because of it
Restored file is missing something of the original

34
Q

Markup language

A

Language or code used to label and define content so it can be styled and displayed on Internet

35
Q

Modem

A

Device that provides access to the Internet by connecting to an ISP
2 main types:
Dial-up
Broadband

36
Q

MP3

A

Moving picture expert group audio layer 3

37
Q

MPEG

A

Moving pictures expert group

38
Q

Moving pictures expert group audio layer 3

A

The standard format for saving audio files
It uses lossy compression to reduce file sizes to a tenth of the original by removing sound outside the range of normal hearing

39
Q

Moving pictures expert group

A

A set of standards that encode audio and visual information using lossy compression

40
Q

PDF

A

Portable document format

41
Q

Portable document format

A

An open standard for exchanging documents that allows text and images to be displayed accurately without running the software in which they were created

42
Q

Router

A

A device that enables multiple computers and devices to connect to the same network
Routers can control priorities and rules such as connections and traffic

43
Q

Selectors

A

A rule within a style sheet that declares where to apply the style

44
Q

Server

A

A computer or program that ‘serves’ data to a client once it has been requested
E.g. Web server

45
Q

Static IP

A

An IP address that applies permanently to devices or networks

46
Q

Tags

A

The basic formatting labels used in Java and HTML to tell the browser what should be displayed on the web page
There are opening tags and closing tabs

47
Q

Uniform resource locator

A

A unique address for every document, video, photograph, web page and so on, that aids opinion the location of data on the web page

48
Q

URL

A

Uniform resource locator

49
Q

WAN

A

Wide area network

50
Q

Wide area network

A

A network that covers a large geographical area and connects different buildings, sites, even countries
The Internet is an example of a global. WAN
2 or more LANs make a WAN

51
Q

W3C

A

World Wide Web Consortium

52
Q

World wide we’d consortium

A

An international standards organisation for the World Wide Web responsible for standardising HTML and promoting best practice

53
Q

XML

A

Extensible markup language

OCR GCSE Computing (1 decks)

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