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The term for information that describes what type of data is available in a database is:

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The term for information that describes what type of data is available in a database is:

(a) Data dictionary

(b) data repository

(c) Index data

(d) Metadata

The question was posed to me during an interview.

My question is from Atomic Domains in chapter Database Systems Design and Implementation of Database Management

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Correct choice is (d) Metadata

To explain: Meta data is generally data about a data.

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