Start with a metrics dictionary that defines every key metric with its exact calculation, data source, and owner. When two people disagree about a number, the dictionary settles it.
Strong answers cover: data dictionaries, metric definitions, data lineage documentation, access controls, data quality monitoring, ownership assignment, and regular audits. Best candidates discuss the cultural challenge of getting people to maintain documentation and how they made governance a habit rather than a burden.
Tests organisational thinking. Analysts in growing organisations face the challenge of maintaining data trust at scale. Candidates who proactively establish governance practices prevent the "nobody trusts our data" problem.