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Introduction to Database System

Introduction to Database System
Which of the following is a database administrator's function?

database design
All of the listed here
performance monitoring
backing up the database

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Introduction to Database System
The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain?

None of the listed here
Data field
Bits
Characters

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Introduction to Database System
Which of the following indicates the minimum number of entities that must be involved in a relationship?

Minimum cardinality
ERD
Greater Entity Count (GEC)
Maximum cardinality

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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?

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

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Introduction to Database System
One data dictionary software package is called

None of these
any of the above
ACCESS
DB/DC dictionary
TOTAL

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Introduction to Database System
The _____ command is used to allocates an extent for the table in SQL

REDEFINE TABLE
MODIFY TABLE
ALTER TABLE
None of these
MODIFY ALLOCATES

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