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Introduction to Database System

Introduction to Database System
An attribute that names or identifies entity instances is a(n):

attribute.
identifier.
relationship.
entity.

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Introduction to Database System
A form defines

the width of each field
none of the listed here
both of the listed here
where data is placed on the screen

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Introduction to Database System
A relation is in 5NF when multivalued dependencies are isolated in their own relation.

True
False

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Introduction to Database System
The purpose of a database is to help people stop using spreadsheets.

True
False

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Introduction to Database System
Related fields in a data base are grouped to form

data record
menu
bank
data file
None of these

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Introduction to Database System
Which of the following hardware components is the most important to the operation of a database management system?

high speed, large-capacity disk
plotter
printer
high-resolution video display

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