Duplication of data is known as (1) data inconsistency (2) data resentence (3) data redundancy

Duplication of data is called data redundancy. Duplication of data should be checked always as data redundancy takes up the free space available in the computer memory. Data redundancy occurs when the same piece of data is stored in two or more separate places and is a common occurrence. Data redundancy can be found in a database, which is an organized collection of structured data that’s stored by a computer system or the cloud.

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