Study Databricks DE-ASSOC Delta Sharing and Federation: key concepts, common traps, and exam decision cues.
This lesson covers the last governance objective cluster: sharing and federation. DE-ASSOC wants you to distinguish between granting governed access to shared data, querying external systems through federation, and physically copying data everywhere because you do not trust the governance model.
Delta Sharing: Databricks sharing feature that lets recipients access shared data without turning every data-exchange question into a file-copy workflow.
Lakehouse Federation: Querying or integrating with external data sources through governed access patterns instead of ingesting every source immediately.
| If the question is mainly about… | Strong lane |
|---|---|
| read-oriented governed sharing to internal or external consumers | Delta Sharing |
| keeping data in an external system while still accessing it through governed integration | Lakehouse Federation |
| different recipient models | sharing type and recipient choice |
| data movement cost across cloud boundaries | cross-cloud egress and governance thinking |
| If the problem is mainly about… | Strong lane |
|---|---|
| read-oriented governed sharing to internal or external consumers | Delta Sharing |
| keeping data in an external system while still accessing it through governed integration | Lakehouse Federation |
| different recipient types or external systems | sharing type and recipient model |
| data movement cost across cloud boundaries | cross-cloud egress and sharing cost thinking |
Do not read every data-access question as “copy the data.” The exam usually wants you to classify whether the better move is:
That is a governance and cost decision, not only a transport decision.
Candidates sometimes confuse Delta Sharing with full read-write operational control. The safer instinct is:
A partner needs governed read access to a dataset, but the producer does not want to build a custom file-export pipeline for every refresh. Which direction is strongest first?
Correct answer: B. The requirement is governed sharing without turning the exchange into a recurring copy workflow.