What does he have to make sure he checks for in his ELT process?

Jhon is working on an ELT process that sources data from six different source systems.

Looking at the source data, he finds that data about the sample people exists in two of six systems.

What does he have to make sure he checks for in his ELT process? Choose the best answer.
A . Duplicate Data.
B . Redundant Data.
C . Invalid Data.
D . Missing Data.

View Answer

Answer: C

Explanation:

Duplicate Data.

While invalid, redundant, or missing data are all valid concerns, data about people exists in two of the six systems. As such, Jhon needs to account for duplicate data issues.