Beginner
Big Data & Data Engineering
Q19 / 100
In a data lake, why is raw data often retained even after processing?
Correct! Well done.
Incorrect.
The correct answer is A) To allow reprocessing with different logic later and to preserve a complete historical record
A
Correct Answer
To allow reprocessing with different logic later and to preserve a complete historical record
Explanation
Keeping raw data provides a source of truth, enabling reprocessing if transformation logic changes or bugs are found, without re-fetching from the original source.
Progress
19/100