Data Warehouse Data Consistency Quiz

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Questions and Answers

What is metadata in the context of a data warehouse?

  • The actual data stored in the warehouse
  • Data refreshed from the warehouse
  • Data used to represent other data (correct)
  • Data extracted from operational databases

Which term refers to the data ownership information, business definition, and changing policies in a data warehouse system?

  • Metadata repository
  • Data lineage
  • Business metadata (correct)
  • Operational metadata

What does currency of data refer to in a data warehouse system?

  • The source of the data
  • The status of the data (active, archived, purged) (correct)
  • The physical form of the data
  • The age of the data

Which task is NOT part of data loading in a data warehouse system?

<p>Updating from data sources (D)</p> Signup and view all the answers

In a data warehouse system, what does metadata act as?

<p>A summary of data contents (D)</p> Signup and view all the answers

What does operational metadata include in a metadata repository?

<p>Data extraction and refresh rules (C)</p> Signup and view all the answers

Which term describes the history of data migrated and transformations applied in a data warehouse system?

<p>Data lineage (D)</p> Signup and view all the answers

What is the function of a metadata repository in a data warehouse system?

<p>Serving as a roadmap to locate warehouse objects (D)</p> Signup and view all the answers

When referring to 'data partitioning' in a data warehouse system, what does it involve?

<p>Organizing data into distinct sections based on criteria (B)</p> Signup and view all the answers

Which term describes updating data from external sources to a data warehouse system?

<p>Data refreshing (A)</p> Signup and view all the answers

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