C_BW4HANA_27 · Question #59
Which layers Offer the virilization approach for layered scalabie archRecWre (LSA++) Of SAP BW/4HANA? (3)
The correct answer is A. Virtual data mart layer B. Data acquisition layer E. Open operational data Store layer. In SAP BW/4HANA's LSA++ architecture, virtualization is enabled through layers that use Open ODS Views and CompositeProviders to access data without full physical replication. The Virtual Data Mart Layer (A) uses CompositeProviders to combine and expose data on-the-fly; the…
Question
Which layers Offer the virilization approach for layered scalabie archRecWre (LSA++) Of SAP BW/4HANA? (3)
Options
- AVirtual data mart layer
- BData acquisition layer
- COpen hub layer
- DAgile data mart
- EOpen operational data Store layer
How the community answered
(33 responses)- A88% (29)
- C9% (3)
- D3% (1)
Explanation
In SAP BW/4HANA's LSA++ architecture, virtualization is enabled through layers that use Open ODS Views and CompositeProviders to access data without full physical replication. The Virtual Data Mart Layer (A) uses CompositeProviders to combine and expose data on-the-fly; the Data Acquisition Layer (B) supports virtual access via Open ODS Views directly on top of source/staging data; and the Open ODS Layer (E) provides real-time, virtual views over operational data without persistent storage - all three embrace the "virtual first" principle of LSA++.
Why the distractors are wrong:
- C (Open Hub Layer): This layer is for exporting/distributing data to downstream systems, not for virtualization within the architecture.
- D (Agile Data Mart): This is a physical InfoProvider-based layer (e.g., aDSO) designed for rapid modeling, not virtualization.
Memory tip: Think "VAO = Virtual Access Only" - the three correct layers (Virtual data mart, Acquisition, Open ODS) are the ones where you can look without touching - accessing data virtually rather than storing physical copies.
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