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Level 136

Communications, Networks & the Internet

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a cluster of computers. In a network, the server computer provides network services to the client computers on that network.
A global network connecting millions of computers, making it possible to exchange information.
Local Area Network
A series of connected personal computers, workstations, and other devices, such as printers or scanners, within a confined space, such as an office building.
Wide Area Network
A computer network that covers a large geographical area. Most WANs are made up of several connected LANs.
a company's private data network that uses internet standards and technology
A network configuration that allows selected outside organizations to access internal information systems
Virtual private network
A private data network that creates secure connections, or "tunnels," over regular Internet lines
User access rights
A method of restricting access to locations within a computer system. A folder or hard drive for example
peer to peer network
any network without a central file server and in which all computers in the network have access to the public files located on all other workstations
client server network
A network that uses centrally administered computers, known as servers, to enable resource sharing for and to facilitate communication between the other computers on the network.
Print server
What computer (or standalone device) receives print jobs from clients and sends them to print devices that are either locally attached or connected to the network?
File server
A specialized server that enables clients to share applications and data across the network.
A __________ forwards packets across computer networks.
Wireless access point
a transmitter with an antenna
network interface card
a circuit board in the base unit of a networked computer
A personal wireless network protocol. IT enables wireless communication between input devices and computers and among other devices within 10 meters
A communication device that converts one form of a signal to another.
A high-speed Internet connection such as cable, satellite, or digital subscriber line (DSL).
A term that refers to communications channels that have low bandwidth.
(Internet Service Provider) A company that provides access to the Internet.
A packet-switching protocol that is actually a set of related protocols that can guarantee packets are delivered in the correct oder and can handle differences in transmission and reception rates
World Wide Web
a collection of electronic files linked together
A location or address identifying where documents can be found on the Internet; a Web address
a list of questions that are frequently asked (about a given topic) along with their answers
A system for sending and receiving messages electronically over a computer network.
Email field that does not allow recipients to know who the other recipients are
A computer __________ is malicious computer code that reproduces itself on the same computer.
junk email send to a mailing list or a newsgroup
An attack that sends an email or displays a Web announcement that falsely claims to be from a legitimate enterprise in an attempt to trick the user into surrendering private information
An online scam that attacks the browser's address bar. Users type in what they think is a valid website address and are unknowingly redirected to an illegitimate site that steals their personal information.
software that is specifically designed to detect viruses and protect a computer and files from harm
(computing) a security system consisting of a combination of hardware and software that limits the exposure of a computer or computer network to attack from crackers