A Data Model Is a ________

question 48

Multiple Choice

A data model is a ________.

• A)logical representation of database data
• B)repository of unprocessed data
• C)collection of isolated databases
• D)set of programs used to retrieve data

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Definitions:

Aa Lava

A type of lava flow with a rough, jagged surface, characterized by its slow movement and thick, viscous nature.

Vesicles

Small holes found in a volcanic rock, representing gas bubbles in a magma that were trapped when the lava solidified.

Welded Tuff

A type of rock formed by the compaction and cementation of volcanic ash and debris, heated enough post-deposition to weld together.

Scoria

A dark gray, black, or reddish volcanic rock that contains abundant vesicles, usually having the composition of basalt or andesite; synonymous with volcanic cinders.