DA0-002 Data Concepts and Environments Practice Question
In the data lifecycle, which phase involves converting raw data into a usable format for analysis?
⚠ Common exam trap
It's easy for candidates to confuse 'ingestion' with 'processing' because both involve moving data, but ingestion is about raw data capture, while processing is about transformation and cleaning before analysis.
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
✓
Processing
The processing phase in the data lifecycle is specifically where raw data is cleaned, transformed, and structured into a usable format for analysis. This includes operations such as parsing, normalization, deduplication, and conversion into formats like Parquet or Avro, which are optimized for query engines like Apache Spark or Presto.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Ingestion
Why it's wrong here
Ingestion is the act of importing data.
- ✗
Analysis
Why it's wrong here
Analysis interprets processed data.
- ✗
Archival
Why it's wrong here
Archival stores historical data long-term.
- ✓
Processing
Why this is correct
Processing transforms raw data into a usable format.
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