communication and the internet Flashcards
what is network?
an arrangement of computers and other devices.
what is lan?
A network that covers a relatively small geographical area, often a single site.
what is wlan?
a local area network in which connected devices use high frequency radio waves to communicate
what is WAN?
a network that covers a large geographical area. it connects together two or more LANs and is usually under collective ownership.
what is client-server network?
a network that has at least one server to provide services to the client computers
what is peer-to-peer network?
a network that doesn’t have any centralized servers. Each computer in the network can act as client and server
what is network topology?
describes how the devices on a network are connected together.
what is internet?
a worldwide system of interconnected networks that enables information to be exchanged and shared.
what is communication media?
the means by which data is transmitted between devices on a network.
what is protocol?
a set of rules that govern how communications on a network should be formatted and what data they should include
what is eavesdrop?
having unauthorized sight of data being sent from one computer to another over a network.
what is Bandwidth?
the amount of data that can be carried on a network in a given period of time
what is checksum?
an error detection technique. A mathematical formula is applied to the data and resulting numerical value is transmitted with the data.
what is packet?
A small quantity of data being sent through a network. The packet is labelled with the sender’s source.
what is web server?
powerful computer systems that store web pages and multimedia that the pages might contain.
