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Physical Database Design

Physical Database Design
Sequential retrieval on a primary key for sequential file storage has which of the following features?

Very fast
Moderately fast
Impractical
Slow

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Physical Database Design
Selecting a data type involves which of the following?

Improve data integrity
Maximize storage space
Represent most values
All of these

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Physical Database Design
A field represents each component of a composite attribute.

True
False

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Physical Database Design
A pointer is a detailed coding scheme recognized by system software for representing organizational data.

False
True

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Physical Database Design
The fastest read/write time and most efficient data storage of any disk array type is:

RAID-0
RAID-2
RAID-1
RAID-3

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Physical Database Design
Two basic constructs to link one piece of data with another piece of data: sequential storage and pointers.

True
False

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