Which of the following best describes data redundancy? a. A condition where data contains fields of different values b. A condition in which a set of data contains unnecessarily duplicated data c. A condition where data sets contain no duplicated fields d. A condition in which a set of data contains data that is unique

B

Explanation:

Data redundancy is a condition created within a database or data storage technology in which the same piece of data is duplicated (held in two separate places).

Whenever data is repeated, this basically constitutes data redundancy. Sometimes, this cn be by accident, but it is also done deliberately for backup and recovery purposes.

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