One of the key challenges in ETL data validation is handling ____________ data sources.
- Diverse
- Homogeneous
- Incomplete
- Internal
Diverse data sources pose a significant challenge in ETL data validation. These sources may have varying formats, structures, or data quality, making it complex to validate and ensure the consistency and integrity of data across different sources during the ETL process. Testers need to address this challenge effectively to ensure accurate data validation.
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