How can we help?

You can also find more resources in our Help Center.

28 terms

unit 3. ch 9-10

STUDY
PLAY
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.