Unit 13: Vocabulary

Please study the 18 vocabulary terms below. Then press the Mark Complete button to continue.
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authenticate
To verify that someone is really the person they claim to be.
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The computer was very slow and took nearly 10 seconds to authenticate a user.
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Bluetooth
An open wireless protocol for exchanging data; primarily used for connecting mobile devices to computers.
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The man used Bluetooth technology to create a personal area network (PAN) between his mobile phone and his computer.
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client-server
A networking model in which the functions are divided between "child" computers and a single "parent" computer which stores and controls access to data.
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A standard protocol such as TCP/IP or IPX is used to define client-server interactions.
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distributed computing
A type of computing in which a computational task is divided into subtasks that execute on a collection of networked computers.
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The professor said the Internet could theoretically be used as a giant distributed computing platform.
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domain
A named group of networked computers that are administered as a unit with common rules and procedures.
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System administrators in large organizations use a domain to save time on common administration tasks.
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encryption
The process of making information 'more secure' by rendering it unreadable to anyone but the intended recipient.
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The company used SSL encryption on its ecommerce web site to protect its customers while they made online purchases.
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ethernet
A baseband local-area network originally developed by Xerox Corp; normally running between 10 Mbps and 1,000 Mbps.
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The man could not connect to the LAN because he forgot to bring his RJ-45 ethernet cable.
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firewall
A device or software program designed to prevent unauthorized access to a network.
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When the firewall was deactivated, the hacker found it easy to penetrate the system and upload a rootkit virus.
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groupware
Software applications that facilitate shared work on documents and information.
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Since the members of the project were thousands of miles apart, a groupware application was an integral part of the solution.
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IP address
A unique string of numbers that identifies a computer or server on the Internet.
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The server's IP address was 215.44.32.134.
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LAN (local area network)
A small computer network normally contained within one room or building.
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The network administrator talked with great enthusiasm about upgrading the LAN to Gigabit Ethernet.
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node
Any computer or other device connected to a network.
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The Networking 101 book said that all connected PCs, servers, and printers are nodes on a network.
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packet
A collection of bits normally sent through a network that contains data surrounded by error correction information.
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The network administrator was upset because the network connection kept dropping packets.
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P2P (peer-to-peer)
A networking model where computers seamlessly share data; used primarily to reduce sever bottlenecks and reduce costs.
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BitTorrent is a popular and controversial peer-to-peer networking program used by millions of people to distribute data.
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protocol
A set of standards or rules which govern communication.
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Before the Internet age, corporate LANs often ran on IPX or NetBEUI protocol.
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VPN (virtual private network)
A high security connection to a private network.
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The man connected to his work intranet from home using a virtual private network
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Wi-Fi
A trademarked, non-technical term used to describe a certain quality of wireless networking compatibility.
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The businessman was upset because he could not get his laptop to connect to the Wi-Fi hotspot at the convention.
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WAN (wide area network)
A network which covers more than one building or area.
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The technical college's WAN connected all the county campuses.
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