ExpertHard1 markMultiple Choice
CPA · Question 28 · Area I: Information Systems
A company uses a 'Data Lake' architecture. What is a primary characteristic of a Data Lake compared to a Data Warehouse?
A company uses a 'Data Lake' architecture. What is a primary characteristic of a Data Lake compared to a Data Warehouse?
Answer options:
A.
It stores highly structured, processed data.
B.
It stores raw, unstructured data in its native format.
C.
It is only used for financial transaction data.
D.
It requires a predefined schema before data can be loaded.
How to approach this question
Warehouse = Organized shelves (Structured). Lake = Big pool of everything (Unstructured/Raw).
Full Answer
B.It stores raw, unstructured data in its native format.✓ Correct
It stores raw, unstructured data in its native format.
A Data Lake is a centralized repository that allows you to store all your structured and unstructured data at any scale in its native format. A Data Warehouse requires data to be processed and structured before storage.
Common mistakes
Confusing Lake and Warehouse.
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