Transfer of data in ICT systems

HideShow resource information
What is an ICT network?
Networks link 2 or more computing devices and transmission media together for the purpose of sharing data, software and peripherals
1 of 22
What is an intranet?
An Intranet is a private network within a company and it is only available to staff or members of the organisation.
2 of 22
What is an extranet?
A part of an organisation's network that can be made available to outside users
3 of 22
What is a peer to peer network?
A peer-to-peer network can use all the computers in a network, connected to it as workstations, and so it is cheaper than a client-server network.
4 of 22
What is a hub?
A network device that allows multiple users to communicate. Inexpensive
5 of 22
When is a hub used?
When more than 2 computers need to be connected
6 of 22
What is a client-server network?
In bigger organisations, servers are used for people to access resources required to their job. In this type of network, the server is connected to a network switch that joins multiple computers together at the data link network protocol layer.
7 of 22
What are the advantages of client-server networks?
Can be managed and backed up centrally and it is easier to concentrate resources such as security and maintenance on one main computer.
8 of 22
What is a network switch?
A hardware device that joins multiple computers together at the data link network protocol layer. Can inspect data packets and forward them to the connected device they are intended for
9 of 22
Define the internet
A large group of interconnected computers around the world that allow the sending and retrieval of information from one computer to another.
10 of 22
What is the World Wide Web?
a collection of multimedia resources accessible via the Internet. Made up of websites and webpages
11 of 22
How are internet files accessed?
Web browser software and HTTP (Hyper Text Transfer Protocol)
12 of 22
Define de facto standards
No formal agreement, law or provision put in place for a particular hardware or software, but is the one that has become common practice to use
13 of 22
Give examples of de facto standards
GIF format for images on the web, the use of Windows OS in some businesses
14 of 22
Define de jure standards
Legally binding industry standard that all manufacturers must adhere to.
15 of 22
Give an example of a de jure standard
WiFi developed by the Institute of Electrical and Electronic Engineers (IEEE)
16 of 22
What is the advantage of de jure standards?
Minimises compatibility issues
17 of 22
What is a router?
A hardware device that joins networks together at the network protocol layer
18 of 22
Which protocols manage the flow of data over the internet?
Transmission Control Protocol (TCP) and Internet Protocol (IP)
19 of 22
What is File Transfer Protocol?
Allows users to send files between computers. A copy of the file is transferred to the receiving computer and can be saved and its data read
20 of 22
What is Post Office Protocol 3?
Protocol that defines the transfer of e-mail between computer systems
21 of 22
What is Secure Sockets Layer (SSL)?
Cryptographic for sending data, such as credit card details, securely over the internet
22 of 22

Other cards in this set

Card 2

Front

What is an intranet?

Back

An Intranet is a private network within a company and it is only available to staff or members of the organisation.

Card 3

Front

What is an extranet?

Back

Preview of the front of card 3

Card 4

Front

What is a peer to peer network?

Back

Preview of the front of card 4

Card 5

Front

What is a hub?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar ICT resources:

See all ICT resources »See all Data and Information resources »