Medium1 markMultiple Choice
Area I: Information SystemsData ManagementStorageArea I

CPA · Question 27 · Area I: Information Systems

Which data storage concept refers to a vast pool of raw, undefined data (structured and unstructured) stored for future purpose?

Answer options:

A.

Data Warehouse

B.

Data Mart

C.

Data Lake

D.

Relational Database

How to approach this question

Differentiate between structured (Warehouse) and raw/unstructured (Lake).

Full Answer

C.Data Lake✓ Correct
Data Lake
A Data Lake stores data in its natural/raw format (blobs, logs, JSON, CSV) until it is needed. A Data Warehouse stores data that has been processed and structured (ETL'd).

Common mistakes

Confusing Warehouse and Lake.

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