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30 Cards in this Set
- Front
- Back
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Internet
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Worldwide publicly accessible network of networks
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electronic commerce
e-commerce |
The buying and selling of goods and services on the Internet, especially the World Wide Web
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Request for Comments
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A document series used as the primary means to communicate information about the Internet. Most RFCs document protocol specifications such as Telnet or File Transfer Protocol, but some are humorous or historical. RFCs are available online.
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Internet Service Provider
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Organization, such as the local phone or cable company, that provides Internet service to home users.
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bandwidth
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1) Amount of data that can be transmitted in a given period of time. 2) Difference between the highest and lowest frequencies available for network signals. 3) Rated throughput capacity of a given network medium or protocol.
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Digital Subscriber Line
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Public network service that delivers high bandwidth at limited distances over the copper wiring of conventional telephone lines. DSL incorporates technology that enables devices to immediately connect to the internet when powered on.
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Metro Ethernet
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Network system based on Ethernet technology that covers a metropolitan area. Metro Ethernet is commonly used as a MAN to connect subscribers and businesses to a WAN, such as the Internet.
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Point Of Presence
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Physical location at an ISP where local subscriber connections are authenticated and switched or routed to other locations.
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Internet Exchange Point
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Physical locations and equipment where multiple ISPs can exchange traffic between their networks.
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Network Access Point
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Obsolete locations for the interconnection of Internet Service Providers in the United States.
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Tier One ISP
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Type of service provider connected directly to the Internet backbone that is also considered part of the backbone.
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Tier 2 ISP
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Type of service provider that covers limited geographical areas and purchases Internet Access from Tier 1 service providers.
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Tier 3 ISP
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Type of service provider that typically covers a smaller geographical area than a Tier 2 and purchases Internet access from Tier 1 or Tier 2 service providers.
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Internet Control Message Protocol
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Standard for network layer testing and troubleshooting. ICMP provides the ability to report diagnostic and error messages. The ping command is part of the ICMP utility.
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transport network (more commonly called "backbone")
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The network of interconnecting networks that allows ISPs to communicate with each other.
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DSL access multiplexer
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A device that allows two or more data sources to share a common transmission medium. DSLAM separates DSL phone signals from data signals and directs them onto networks. A DSLAM contains a bank of DSL modems to accept the connections from DSL customers.
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Cable Modem Termination System
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Device located at the local cable company that exchanges digital signals with cable modems on the Internet.
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scalable network
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A network's capability to adapt to increased demands without suffering negative effects on performance.
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ISP Service Equipment Co-Location
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Some or all of a business' internal network physically at ISP premise
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ISP Service - Web Hosting
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ISP provides server and application software for business' web site
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ISP Service - FTP
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ISP provides Sever and application software for business' FTP
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ISP Service - Apps and Media Hosting
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ISP server/software for streaming music, video, or apps like online databases
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ISP Service - VoIP
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Business saves on phone charges, esp. internal long-distance.
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ISP Service - Technical Support
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Some ISPs offer tech support and consulting for business with little or no in-house tech support
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ISP Service - Point of Presence
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Business can connect to the ISP through POP via a variety of access technologies.
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Dial-up Access
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$; Inexpensive; via phone line & modem; dial-up to ISP #; slowest 56 kbps; useful for mobile user & no other access areas.
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Digital Subscriber Line DSL
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$$; faster; telecom line but continuous connex; hi-spd modem separates modem signal from phone signal; provide Ethernet connex to host computer or LAN
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Cable Modem
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Cable TV provider; over coaxial cable; cable modem separates signals; Ethernet connex to host computer or LAN
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Satellite Connection
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Satellite ISP; satellite modem transmits radio signals to nearest POP in satellite network
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1.2.1.1
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input information from on-hover pop-ups
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