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Answer: Implement data aggregation by aligning data from different sources based on common keys, validating data consistency through checksums and integrity through schema validation.
Option B is the correct method as it involves aligning data from different sources based on common keys and ensuring data consistency and integrity through validation checks, which is crucial for accurate and reliable data aggregation.
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Consider a scenario where you need to aggregate data from multiple sources into a single repository. Describe the process you would follow to aggregate this data, including how you would ensure data consistency and integrity during the aggregation process.
A
Aggregate data by simply combining all sources without any checks for consistency or integrity.
B
Implement data aggregation by aligning data from different sources based on common keys, validating data consistency through checksums and integrity through schema validation.
C
Avoid aggregation if data sources have different schemas.
D
Aggregate data by randomly selecting data from each source to create a new dataset.
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