multiple choice chpt 3 1-10

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1 point

A tool that database designers use to show the logical relationships among data is a(n) ___.

relational model

all of the above

data model

entity-relationship diagram

1 point

The ___ is a description that involves "telling" the DBMS the logical and physical structure of the data and the relationships among the the data for each user.

data model

data manipulation language

entity relationship diagram

schema

1 point

A database ___.

is accessed primarily for use by the organization's database admin and data admin

is a collection of unstructured data

provides an essential foundation for an organization's knowledge management and artificial intelligence systems

helps companies reduce costs, increase profits, track past business activities, and open new market opportunities

1 point

A database is a collection of integrated and related ____.

attributes

files

fields

records

1 point

A ___ is a field or set of fields in a record that uniquely defines the record.

attribute

primary key

key

data item

1 point

A collection of fields all related to a single object, activity, or individual is a(n) ___.

character

attribute

record

file

1 point

A ___ is a climate controlled building or set of buildings that houses database servers and the systems that deliver mission critical information and services.

shipping container

data center

data hierarchy

data warehouse

1 point

The smallest piece of data used by a computer is the ___.

byte

bit

character

entity

1 point

As long as the tables in a relational database share one common ___, the tables can be linked to provide useful information and reports.

attribute

characteristic

file

primary key

10.

1 point

Basic data manipulations include ___ which involves eliminating rows in a relational database.

selecting

projecting

linking

joining

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