問題文
A grocery retailer is starting a Data 360 project. The IT lead asks how records travel from a source system to the point where a marketer can build an audience. Which description of that path is accurate?
選択肢
- A data model object is a copy of the source system table.
- Data lake objects and data model objects always hold the same rows, so the mapping step is only a cosmetic renaming exercise and can be skipped whenever the field names already match.
- A data stream writes straight into a data model object, so the data lake object layer exists only to keep archived rows that segmentation and activation no longer need to read at query time.
- Each data stream lands its records in a data lake object, and mapping those data lake objects to data model objects is what makes the records available for segmentation, insights, and activation.