ExpertMedium1 markMultiple Choice
CPA · Question 22 · Area I: Information Systems
A company uses a 'Data Lake' architecture. Which characteristic best describes a Data Lake?
A company uses a 'Data Lake' architecture. Which characteristic best describes a Data Lake?
Answer options:
A.
It stores highly structured, processed data.
B.
It stores raw data in its native format.
C.
It is primarily used for transaction processing (OLTP).
D.
It requires a defined schema before data can be loaded (Schema-on-write).
How to approach this question
Contrast Data Lake (Raw) with Data Warehouse (Processed).
Full Answer
B.It stores raw data in its native format.✓ Correct
Data Lakes allow storage of vast amounts of raw data without pre-processing. Data Warehouses require ETL (Extract, Transform, Load) before storage.
Common mistakes
Confusing Data Lake and Data Warehouse.
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