unit 3. ch 9-10

28 terms by raybabyyy 

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in many public locations, people connect wirelessly to the internet through a ____ ____ using their mobile computers or devices

hot spot

the design of computers, devices & media in a network

network architecture

on a ____ network, all computers & devices connect to a central device

star

___-____ cables have the capability of carrying more signals than wire cables

fiber-optic

a ____ ____ is a legal agreement that permits users to install software on multiple computers, usually at a volume discount

site license

a newer network standard developed by IEEE that specifies how wireless devices communicate over the air in a wide area

WIMAX

in ____-____ wire, each cable consists of two separate insulated copper wires that are twisted together

twisted pair

a ___ is a coffee house or restaurant that provides computers with internet access to its customers

cybercafe

a ____ license is a legal agreement that allows multiple users to access software on a server simultaneously

network license

a ____ is a network that covers a large geographic area, such as a city, country, or the world, using a communications channel that combines many types of media

WAN (wide area network)

this type of network describes an internet network on which users connect directly to each others hard disks & exchange files over the internet

internet PTP (peer to peer)

a network ____ refers to the layout of the computers & devices in a communications network

topology

a ___ ____ ___ extends the basic home network to include features such as lighting control, thermostat adjustment, & a security system

intelligent home network

the term ___-___ identifies any network based on the 802.11 family of standards

wi-fi

a microwave ____ is an earth-based reflective dish that contains the antenna, transceivers, etc

station

global positioning system

GPS

with ____, users type & send short texts on a smartphone or mobile device

SMS

in a relational database, each row ____

row has a primary key, each column has a unique name

a user of a relational database refers to a file as a ___, a record as a ____, & a field as a _____

table, row, column

when compared with a file processing system, what are the 3 advantages that a database offers?

...

DBMSs that maintain inactive data for an extended period commonly ____ records

flag

a ___ ___ stores images, audio clips, & video clips

multi-media database

a ____ stores data about engineering, architectural, & scientific designs

CAD

_____ is a query language that allows users to manage, update, & retrieve data

SQL

____ ____ reduce data entry errors

validation rules

most DMBs include ___, a feature that has a graphical user interface to assist users with retrieving data

QBE (query by example)

in a database, the data ____ specifies the kind of data a field can contain & how the field is used

data type

the data in a ___ field is common to all records

primary, key, etc.

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