Question

when data of one file cannot be mapped to other relation file, it is called data ____

a) Dependence
b) Redundancy
c) Inconsistency
d) Isolation ​

Answer 1

Answer:

Data redundancy occurs when the same piece of data exists in multiple places, whereas data inconsistency is when the same data exists in different formats in multiple tables. Unfortunately, data redundancy can cause data inconsistency, which can provide a company with unreliable and/or meaningless information.

may be this is the answer.