What is a data catalog entry and what metadata does it typically include?

• A. A catalog entry describes a dataset or asset, including name, description, owner, schema, lineage, access controls, and quality metrics.
• B. A catalog entry only stores the dataset size.
• C. A catalog entry is a log of user activity.
• D. A catalog entry is a code repository.

Answer: (A)

A data catalog entry is a structured piece of metadata that describes a data asset, making it easy to discover, understand, and govern. The best answer lists the essential elements you typically see: the asset’s name and a clear description so you know what it is; the owner or steward responsible for it; the schema or structure (such as tables, columns, data types) so you understand the data’s format; lineage showing where the data comes from and how it’s transformed; access controls indicating who can access or modify it; and data quality metrics that give a sense of reliability (like completeness or timeliness). These pieces together provide context, governance, and trust, which a catalog is designed to support.

The other options miss the mark because a catalog entry isn’t just dataset size, isn’t simply a log of user activity, and isn’t a code repository.