Evaluate Current State22% of the exam

Tableau Catalog lineage and impact analysis

Use Tableau Catalog lineage to trace upstream inputs and downstream dependents of a lineage anchor, run impact analysis and email owners, explain lineage gaps and count mismatches, and enable Catalog on Tableau Server through the Metadata API.

Official exam objective
Evaluate lineage of existing data structures.

~7 min read · 8 practice questions ·

What the exam expects

  • Read a lineage from its anchor: which assets are upstream inputs and which are downstream dependents.
  • Run an impact analysis for a column or field change and contact the affected owners, with the capability that requires.
  • Explain where lineage is incomplete (custom SQL, cubes, flows with parameters) and what an embedded external asset is.
  • Explain why lineage counts and content tab counts differ.
  • Enable Tableau Catalog on Tableau Server and contrast it with Tableau Cloud, including the Metadata API's role.

Key terms:

  • Lineage anchor: the asset whose Lineage tab you opened; dependencies are shown relative to it.
  • Downstream / upstream assets: assets that depend on the anchor, and assets the anchor depends on.
  • External asset: a database, file or table used by Tableau content.
  • Initial ingestion: Catalog's first index of existing content after the Metadata API is enabled.
  • Metadata API: the GraphQL API that indexes content and powers Catalog.

Key facts

Catalog licensing
Detail
Licensed through Data Management
Possible lineage anchors
Detail
Database, table, workbook, published data source, virtual connection, virtual connection table, flow
Downstream assets
Detail
Below the anchor; depend on it
Email owners
Detail
Requires Overwrite (Save) on the lineage anchor
Flows with parameter values
Detail
Lineage data won't show
Cube data sources
Detail
Not supported by Catalog
Enable on Server
Detail
tsm maintenance metadata-services enable
Enable on Cloud
Detail
No action unless upgraded from Standard
Repository disk for metadata
Detail
Up to half the current repository usage again
Stop indexing
Detail
tsm maintenance metadata-services disable
Sources for this section (3)
  • Why might an admin turn off Catalog capabilities before enabling the Metadata API?
  • What happens when the command that turns on the Metadata API is rerun?
  • When did data source lineage pages gain field search and filtering?
  • Which tool explores and tests Metadata API queries in the browser?

The questions are free to read. Answers with their sources and self-grading are included with the pack.

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