Duplication of data is known as (1) data inconsistency (2) data resentence (3) data redundancy (4) data error??
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data redundancy is duplication of data...
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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.
To store new contents further, there would be problem in memory space allocation as it already filled up with duplicated data.
So to free up the memory space occupied due to data redundancy, deduplication is done thus eliminating the unwanted duplicated data.
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