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Physical Database Design

Physical Database Design
A multidimensional database model is used most often in which of the following models?

Network
Relational
Hierarchical
Data warehouse

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

Impractical
Moderately fast
Slow
Very fast

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Physical Database Design
Hashing algorithm converts a primary key value into a record address.

False
True

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Physical Database Design
Denormalization and clustering can work well to minimize data access time for small records.

False
True

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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
In general, larger block sizes are used for online transaction processing applications and smaller block sizes are used for databases with a decision support or data warehousing system.

True
False

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