47 terms

Chapter 7- Network: Mobile Businesses

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Terms in this set (...)

Local Area Network (LAN)
Connects a group of computers in close proximity, such as in an office building, school, or home
Wide Area Network (WAN)
Spans a large geographic area such as a state, province, or country
Metropolitan Area Network (MAN)
A large computer network usually spanning a city
National Service Providers (NSPs)
Private companies that own and maintain the worldwide backbone that supports the Internet
Network Access Points (NAPs)
Traffic exchange points in the routing hierarchy of the Internet that connects NSPs
Regional Service Providers (RSPs)
Offer internet service by connecting NSPs, but they also can connect directly to each other
Internet Service Providers (ISP)
Provides access to the Internet for a monthly fee
Bandwidth
The maximum amount of data that can pass from one point to another in a unit of time
Bit
The smallest element of data and has a value of either 0 or 1
Bit Rate (Data Rate)
Number of bits transferred or received per unit of time
Modem
A device that enables a computer to transmit and receive data
Broadband
High-speed Internet connection that is always connected
Digital Subscriber Line (DSL)
Type of Broadband; allows high-speed digital data transmission over standard telephone lines
Internet Cable Connections
Type of Broadband; provide Internet access using a cable television company's infrastructure and a special cable modem
T1 Lines
A type of data connection able to transmit a digital signal at 1,544 Mpbs
Protocol
A standard that specifies the format of data as well as the rules to be followed during transmission
Transmission Control Protocol/Internet Protocol (TCP/IP)
Provides the technical foundation for the public Internet as well as for the large numbers of private networks
Domain Name System (DNS)
Converts IP addresses in domains, or identifying labels that use a variety of recognizable naming conventions
Network Convergence
The efficient coexistence of telephone, video, and data communication within a single network, offering convenience and flexibility not possible with separate infrastructures
Unified Communications (UC)
The integration of communication channels into a single service
Voice over IP (VoIP)
Uses IP technology to transmit telephone calls
Peer-to-Peer (P2P)
A computer network that relies on the computing power and bandwidth of the participants in the network rather than a centralized server
Internet Protocol TV (IPTV)
Distributes digital video content using IP across the Internet and private IP networks
Primary Resources for Sharing
Intranet, extranet, and virtual private network
Intranet
A restricted network that relies on Internet technologies to provide an Internet-like environment within the company for information sharing, communications collaboration, etc
Extranet
An extension of an intranet that is available only to authorized outsiders, such as customers, partners, and suppliers
Secure Sockets Layer (SSL)
A standard security technology for establishing an encrypted link between a web server and a browser, ensuring that all data passed between them remain private
SSL Certificate
An electronic document that confirms the identity of a website or server and verifies that a public key belongs to a trustworthy individual or company
Secure Hypertext Transfer Protocol (SHTTP or HTTPS)
A combination of HTTP and SSL to provide encryption and secure identification of an Internet server
Digital Divide
A worldwide gap giving advantage to those with access to technology
Personal Area Networks (PAN)
Provide communication over a short distance that is intended for use with devices that are owned and operated by a single user
Bluetooth
A wireless PAN technology that transmits signals over short distances among cell phones, computers, and other devices
Wireless LAN
A local area network that uses radio signals to transmit and receive data over distances of a few hundred feet
Wireless Fidelity (wi-fi)
A means by which portable devices can connect wirelessly to a local area network, using access points that send and receive data via radio waves
802.11
A set of standards carrying out wireless local area network communication
Wireless MAN (WMAN)
A metropolitan area network that uses radio signals to transmit and receive data
Worldwide Interoperability for Microwave Access (WiMAX)
A communication technology aimed at providing high-speed wireless data over metropolitan area networks
Wireless WAN (WWAN)
A wide area network that uses radio signals to transmit and receive data
Smartphones
Offer more advanced computing ability and connectivity than basic cell phones
3G
A service that brings wireless broadband to mobile phones
Streaming
A method of sending audio and video files over the Internet in a way that the user can view the file while it's being transferred
Satellite
A space station that orbits the Earth receiving and transmitting signals from Earth-based stations over a wide area
Radio-Frequency Identification (RFID)
Uses electronic tags and labels to identify objects wirelessly over short distances
Global Positioning System (GPS)
A satellite-based navigation system providing extremely accurate position, time, and speed information
Geographic Information System (GIS)
Consists of hardware, software, and data that provide location information for display on a multidimensional map
Location-Based Services (LBS)
Applications that use location information to provide a service
Wi-FI Protected Access (WPA)
A wireless security protocol to protect wi-fi networks