Chapter 6 vocab Flashcards
A group of networked computers that are physically close together, usually in the same building.
Local Area Network (LAN)
A network of interconnected LANs across a large geographical location
Wide Area Network (WAN)
A MAN connects smaller LANs into a larger, centralized network. A MAN covers a larger area than a LAN, but is not as large as a WAN. MANs are commonly used to describe networks in large university campuses, large cities, or a collection of cities and towns in a geographical area.
Metropolitan Area Network (MAN)
organizations that provide many services for accessing and using the Internet.
Internet Service Providers (ISP)
A network security device that protects a network by examining the traffic before transferring it to the network.
Firewall
Short for modulator/demodulator, a network device that converts digital signals used by modern networks to analog signals that are typically carried by telephone or cable television lines.
Modem
A network device that moves traffic between two different IP networks.
Router
A network device that moves traffic within an IP network.
Switch
A computer component that provides a port (usually RJ-45) where a network cable can be connected.
Network Interface card
A technology that uses specially encoded tags that respond in a specific way when scanned by a radio frequency reader. often used by placing a smartphone near a scanner to pay for an item in a store.
Near Field Communications (NFC)
a technology typically used for tracking objects.
Radio Frequency ID
(RFID)
A computer that provides network access to shared disk storage.
File Server
A computer that provides email services to a network.
Mail Server
A computer that stores web pages and hypertext documents and transmits them to devices requesting these pages.
Web Server
A computer that stores databases, which are huge repositories of organized data.
Database Server
