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22 Cards in this Set
- Front
- Back
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Launched in 1969 as a U.S funded project that developed a national computer network. What was the Internet was initially called.
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*Advanced Research Project Agency Network (ARPANET
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What are the two basic parts of a URL?
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*protocols (http://)
*domain name |
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What are network protocols?
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*rules for exchanging data between computers
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What are called of the extensions .gov, .edu, .mil, and, .net?
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*(TLD) top level domain..identifies type of organization
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When surfing the Web, the browser interprets the HTML command found in a document file, and displays it as a(n) ______
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*webpage
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B2C
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*Business to consumer: -online banking –financial trading –shopping!
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C2C
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*Consumer to consumer: ebay..auction house sites/person-person auction sites
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B2B
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*Business to business: sale of a product or service from one business to another
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What are the programs that automatically start and operate as a part of your browser?
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*plug ins
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What is the main function of sending and receiving devices?
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*often a computer or special communication device
-originates (sends) and accepts (receives) messages in the form of data, information, and/or instructions. |
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Most Web-enabled communication devices follow a standard called _____ to connect to computers and to the Internet.
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*TCP/IP (transmission control protocol/Internet protocol)
-identify sending and receiving devices –reformatting info for transmission across internet |
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How is the capacity of a communication channel is measured?
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*bandwidth
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A computer system in which computer power is shared by several separate computers linked by a communications network is called a _______.
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*computer network
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What is the device which enables connectivity between two LANs or a LAN and a larger network?
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*network galaxy
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The Internet connects millions of computers and resources across the world via wires, cables, and satellite.
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*true
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What information is necessary for the browser to gain access to resources?
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*location/address..URLs (uniform resource locators)
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A special computer that checks all communication that passes through it between a company's internal networks and the outside world is called a ______.
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proxy server
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What are the four variables that one must look at while evaluating information on the Web?
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*authority: author an expert? Official or personal website?
*accuracy: info been critically reviewed before posted? Method to report inaccurate info available? *objectivity: facts or bias? Personal agenda? *currency: up to date? Does the site specify the update date? |
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What kind of wire (cable) do telephone lines use?
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*twisted pair cables..made of hundreds of copper wires
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Understand the roles of clients and servers in a network client/server environment.
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*one computer used to coordinate and supply services to other nodes on the network..
-client computers request resources from server computer -servers coordinate and supply access to resources..client nodes request services |
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What is the most common cabling standard in LAN?
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*Ethernet
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What is a peer-to-peer network.
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*network in which nodes have equal authority and can act as both servers and clients..both send and obtain
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