Chapter 7: Networks Flashcards
Local Area Network
Connects a group of computers in close proximity, such as in an office building, school, or home
Wide Area Network
Spans a large geographic area such as a state, province, or country
Metropolitan Area Network
A large computer network usually spanning a city
Network Topology
Refers to the geometric arrangement of the actual physical organization of the computers and other network devices in a network
National Service Providers
Private companies that own and maintain the worldwide backbone that supports the internet
Network access points
Traffic exchange points in the routing hierarchy of the internet that connect national service providers
Regional service providers
Offer internet service by connecting to national service providers but they also can connect directly to each other
Bandwidth
The maximum amount of data that can pass from one point to another in a unit of time
Broadband
A high speed internet that is always connected
Network Transmission Media
Refers to the various types of media used to carry the signal between computers
Wire Media
Transmission material manufactured so that signals will be confined to a narrow path and will behave predictably
Protocol
A standard that specifies the format of data as well as the rules to be followed during transmission
Transmission Control Protocol/Internet Protocol
Provides the technical foundation for the public internet as well as for large numbers of private networks
Domain Name System
Converts IP addresses into domains
Network Convergence, unified communication
The efficient coexistence of telephone, video, and data communication within a single network, offering convenience and flexibility not possible with separate infrastructures
Unified Communication
The integration of communication channels into a single service
Peer To Peer
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
Uses IP technology to transmit telephone calls
Internet Protocol TV
Distributes digital video content using IP accords 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 and secure identification of an internet server
Digital Divide
A worldwide gap giving advantage to those with access to technology
Personal Area Networks
Provide communication over a short distance that is intended for use with devices that are owned and operated by a single user
Bluetooth
Wireless personal Area networks technology that transmits signals over short distances between 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
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
A metropolitan area network that uses radio signals to transmit and receive data
Worldwide Interoperability for Microwave Access
A communications technology aimed at providing high speed wireless data over metropolitan area networks
Wireless WAN
A wide area network that uses radio signals to transmit and receive data
Satellite
A space station that orbits the earth receiving and transmitting signals from earth based stations over a wide area
Radio Frequency Identification
Uses electronic tags and labels to identify objects wirelessly over short distances
Radio Frequency Identification Tag
An electronic identification device that is made up of a chip and antenna
Radio Frequency Identification Reader
A transmitter/receiver that reads the contents of rfid tags in the area
Asset Tracking
Occurs when a company places active or semi passive rfid tags on expensive products or assets to gather data on the items location with little or no manual intervention
RFID Accelerometer
A device that measure the acceleration of an item and is used to track truck speeds or taxi cab speeds
Chipless RFID tag
Uses plastic or conductive polymers instead of silicon based microchips allowing them to be washed or exposed to water without damaging the chip
Global Positioning System
A satellite based navigation system providing extremely accurate position, time, and speed information
Automatic Vehicle Location
Uses gps tracking to track vehicles
Latitude
Represents a north/south measurement position
Longitude
Represents an east/west measurement position
Geographic Information System
Consists of hardware, software, and data that provide location information for display on a multidimensional map
Spatial Data
Identifies the geographic location of features and boundaries of earth, such as natural or constructed features, oceans, and more
Geocoding
A spatial databases coding process that assigns a digital map feature an attribute that serves as a unique ID or classification
Location Based Services
Applications that use location information to provide a service
