Chapter 5 ITEC Quiz
Terms
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- Microwave transmission
- _______ is a line-of-sight medium, which means that a straight line between the transmitter and receiver must be unobstructed.
- communications medium
- A _______________ is anything that carries a signal between a sender and receiver.
- Fiber-optic
- ___________ cable consists of thousands of extremely thin strands of glass or plastic bound together in a sheathing
- Application servers
- _______store programs such as word processors and spreadsheets and deliver them to workstations to run when users click the program icon.
- File servers
- _______ store organizational and user files, delivering them to workstations on request.
- Pagers
- ______ are small, lightweight devices that receive signals from transmitters.
- VPN
- A(n) _______ may be used to connect an organization's networks dispersed around the world into one large intranet.
- Database servers
- _______ store organizational databases and respond to user queries and requested information.
- modem
- A(n) _______ modulates and demodulates signals from one form to another, typically for the purpose of connecting to the Internet.
- Telecommunications
- ______ refers to the electronic transmission and reception of signals for communications.
- Gateways
- ________ are network points that act as an entrance to another network.
- Blade servers
- _______ are like PC motherboards that are rack-mounted together in groups of up to 20 to a case.
- intranet
- A(n) _______ uses the protocols of the Internet and the Web-----TCP/IP and HTTP, along with Internet services such as Web browsers -----within the confines of a private network.
- cellular network
- A(n) _______ is a radio network in which a geographic area is divided into cells with a transceiver antenna (tower) and station at the center of each cell, to support mobile communications.
- WAN
- A(n) ______ that crosses an international border is considered a global or international network.
- Wireless adapters
- __________ can be a circuit board, PC card, or an external device that connects through a USB port that provides an external antenna to send and receive network radio signals.
- bandwidth
- In computer networks, the data transmission rate is also referred to as the _________.
- transborder data flow
- In addition to requiring sophisticated equipment and software, global networks must meet specific national and international laws regulating the electronic flow of data across international boundaries, often called _______.
- coaxial
- A ________ cable consists of an inner conductor wire surrounded by insulation, a conductive shield (usually a layer of foil or metal braiding), and a cover.
- MAN
- A(n) _______ connects networks within a city or metropolitan-size area into a larger high-speed network.
- radio wave
- A(n) ______ is an electromagnetic wave transmitted through an antenna at different frequencies.
- WAN
- A(n) ______ connects LANs and MANs between cities, across country, and around the world using microwave and satellite transmission or telephone lines.
- Data communications
- _______ refer to the electronic transmission and reception of digital data, typically between computer systems.
- EDI
- _______ uses network systems and follows standards and procedures that allow output from one system to be processed directly as input to other systems, without human participation.
- Bluetooth
- _______ enables a wide assortment of digital devices to communicate directly with each other wirelessly over short distances.
- Bridges
- ________ connect two or more network segments, as a repeater does, but they also help regulate traffic.
- VPN
- A(n) ______ uses a technique called tunneling to securely send private network data over the Internet.
- GPS
- A(n) ______ uses satellites to pinpoint the location of objects on earth.
- Distributed computing
- ______ refers to computing that involves multiple remote computers that work together to solve a computation problem or perform information processing.
- communications satellite
- A(n) ________ is basically a microwave station placed in outer space.
- firewall
- A(n) ________ is a device or software that filters the information coming onto a network to protect the network computers from hackers, viruses, and other unwanted network traffic.
- RFID
- ________ uses tiny transponders in tags that can be attached to merchandise or other objects and read using an RFID transceiver or reader for the purpose of identification.
- telecommunications network
- A ________ connects communications and computing devices.
- Routers
- ________ are advanced networking components that can divide a single network into two logically separate networks.
- Twisted pair
- ________ is the type of cable that brings telephone service to your home and is used for dial-up modem connections.