ExpertMedium1 markMultiple Choice
CPA · Question 41 · Area I: Information Systems
Which of the following is a primary benefit of using a 'Data Lake' compared to a 'Data Warehouse'?
Which of the following is a primary benefit of using a 'Data Lake' compared to a 'Data Warehouse'?
Answer options:
A.
Data Lakes only store structured data.
B.
Data Lakes can store raw, unstructured data (like images and logs) without pre-processing.
C.
Data Lakes are faster for standard SQL reporting.
D.
Data Lakes enforce strict schema-on-write.
How to approach this question
Differentiate Lake (Raw/Messy) vs Warehouse (Structured/Clean).
Full Answer
B.Data Lakes can store raw, unstructured data (like images and logs) without pre-processing.✓ Correct
B
A Data Lake is a repository that holds a vast amount of raw data in its native format (structured, semi-structured, and unstructured). A Data Warehouse typically stores structured, processed data optimized for reporting.
Common mistakes
Thinking Data Lakes are more organized than Warehouses.
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