DA0-002 Data Concepts and Environments Practice Question
A company is ingesting data from multiple sources into a cloud data warehouse. They decide to load the data raw and then perform transformations within the warehouse. Which approach does this describe?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
ELT
ELT (Extract, Load, Transform) loads raw data first, then transforms it inside the data warehouse, as opposed to ETL which transforms before loading.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Data lake ingestion
Why it's wrong here
Data lake ingestion is not specifically an ELT process.
- ✗
ETL
Why it's wrong here
ETL transforms before loading.
- ✓
ELT
Why this is correct
ELT loads raw data then transforms within the warehouse.
- ✗
Stream processing
Why it's wrong here
Stream processing deals with real-time data.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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