Which data quality attribute means data is uniform and standard across datasets (formats, lengths, metadata)?

• A. Consistency
• B. Validity
• C. Timeliness
• D. Accuracy

Answer: (A)

Uniformity of data across datasets is about consistency. It means formats, field lengths, and metadata definitions line up so data from multiple sources can be integrated and analyzed without constant rework. When every dataset uses the same date formats, the same data types, and the same metadata standards, joins and comparisons become reliable and scalable, reducing parsing errors and surprises during data processing. This kind of standardization is what lets you trust that a value in one source means the same thing as the same field in another source.

Validity, timeliness, and accuracy are related but different ideas. Validity is about data conforming to defined rules and allowed values; timeliness is about keeping data up-to-date; accuracy is about how close the data is to the real-world truth.