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Metadata enables database designers and users to do all of the following except:

  • A.sample data.
  • B.understand what data exist.
  • C.what the fine distinctions are between similar data items.
  • D.what the data mean.

Answer: A

Correct answer: sample data.

Metadata is data about data: it records what exists, what each item means, and how similar items differ. What it does not contain is the data itself, so it cannot be sampled for values - a designer reading the catalogue learns that a field is a currency amount in sterling, not what any particular amount is.

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