Network Flashcards
Access Permissions
The type of access given to a user for a network resource e.g. accessing a file, directory or server.
Analog
A continuously varying signal in the shape of a wave. TV, phones and radio use analog transmission.
Binary
Having 2 states, such as on and off in an electronic signal
Bridge
A device that knows the segment on which the destination computer is located and only sends a data packet to that segment.
Bus topology
A layout of a Local Area Network in which computers and other devices are connected in a row along a single cable.
Cable
- collection of wires shielded within a protective tube
- connects computers and equipment into a network
Common types of cables
Coaxial cable and UTP
Coaxial cable
used in thin Ethernet and to connect your TV to your VCR
UTP
Unshielded Twisted Pair: used for UTP Ethernet – a very common type of network cable; and fibre optic.
Client
On a local area network or the Internet, a computer that accesses network resources provided by another computer (called a server).
Client/server
A network design where a task is divided between a back end (server) which stores data and a front end (client) which asks for the data.
Co-axial cable
A type of cable used in networks. Electronic signals do not weaken on co-axial cables as they do on twisted pair cables.
Communications
The transmission of data over a communication link, such as an ordinary phone line, messaging on a Blackberry or from one computer to another computer.
Digital
The way computers save and process information in binary digits (bits). A bit is either 1 or 0, 1 representing On and 0 representing Off.
Domain
For Windows NT Server, a collection of computers that share a common domain database and security policy. Each domain has a unique name.
A system where a user can exchange messages and documents with other computer users (or groups of users) via a communications network
Fiber optic cable
A cable made of very thin strands of glass capable of carrying electronic signals as pulses of light.
File server
A central computer that stores the files of every person on the network.
File transfer protocol
A process that provides file transfers between computers.
Gateway
A device that connects two local area networks, whether or not they use the same protocols.
Group
An account containing members who are granted the same permissions and rights.
Hub
An electronic device which provides a common connection to all devices on the network.