34 terms

CS 110 Chapter 7

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 to NSPs, but they also can connect directly to each other
The maximum amount of data that can pass from one point to another in a unit of time
A high-speed Internet connection that is always connected
Dial Up
A slow speed connection using a modem
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 number of private networks
Domain name system
Converts IP addresses into domains
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 communication (UC)
The integration of communication channels into a single service
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
Voice over IP (VoIP)
Uses IP technology to transmit telephone calls
Internet Protocol TV (IPTV)
Distributes digital video content using IP across the internet and private IP networks
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
A combination of HTTP and SSL to provide encryption an 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
Wireless PAN technology that transmits signals over short distances between cell phone, computer, and other devices
Wireless LAN (WLAN)
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
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
Smart phone
Offer more advanced computing ability and connectivity than basic cell phones
A service that brings wireless broadband to mobile phones
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)
Application that use location information to provide a service