DA0-002 Data Concepts and Environments Practice Question
A data analyst needs to extract data from a transactional database and load it into a data warehouse for reporting. Which process typically transforms the data before loading it into the warehouse?
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
✓
ETL
ETL (Extract, Transform, Load) transforms data before loading it into the warehouse, which is common for traditional data warehousing.
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 virtualization
Why it's wrong here
Virtualization provides a virtual view without moving data.
- ✗
ELT
Why it's wrong here
ELT transforms after loading.
- ✓
ETL
Why this is correct
ETL transforms before loading.
- ✗
Data replication
Why it's wrong here
Replication copies data without transformation.
Go deeper
Related to this question
About these practice questions
Courseiva writes every DA0-002 question from scratch — 986 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DA0-002 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DA0-002 exam.