SAP C_BW4H_2404 SAP Certified Associate - Data Engineer - Data Fabric Exam Practice Test

What is required before you can integrate an HDI Calculation View (data category Dimension) into another HDI Calculation View (data category Cube with Star Join) of the same HDI container?"

A. Create a synonym for the HDI Calculation View (data category Dimension).

B. Build the design time file of the HDI Calculation View (data category Dimension) to generate a runtime object.

C. Create a synonym for the HDI Calculation View (data category with Star Join).

D. Build the runtime object of the HDI Calculation View (data category Cube with Star Join) to generate a design time file.

Answer: B

An architecture overview model is a high-level diagram that shows the main components and data flows of a solution. It helps to identify the required data sources and how they are connected to the target system. An architecture overview model can also show the main business processes and scenarios that are supported by the solution. An architecture overview model is useful for scoping, planning, designing, and communicating a solution.

•A. You cannot use navigation attributes for this characteristic: This is a disadvantage of setting the High Cardinality flag for a characteristic. A characteristic with high cardinality cannot be used as a navigation attribute for another characteristic, and therefore it cannot have navigation attributes itself12.

•C. SID numbers are created at runtime which might negatively affect the reporting performance: This is a disadvantage of setting the High Cardinality flag for a characteristic. A characteristic with high cardinality has no persistent SID values and no SID table, which means that the SID numbers are generated on the fly during query execution. This can have a negative impact on the reporting performance, especially if the characteristic is used in filters or aggregations13.

References:

•1 https://help.sap.com/docs/SAP_BW4HANA/107a6e8a38b74ede94c833ca3b7b6f51/f851415842154e59a5f038e458b97a0b.html

•2 https://help.sap.com/docs/SAP_BW4HANA/107a6e8a38b74ede94c833ca3b7b6f51/88a51330c046426091f3730d0c42c0de.html

•3 https://blogs.sap.com/2019/01/14/high-cardinality-characteristics-in-bw4hana/

•A. Combine InfoProviders using Join and Unions: This is what a Composite Provider allows you to do in SAP BW/4HANA. A Composite Provider is an InfoProvider that combines data from several analytic indexes or from other InfoProviders (by union or inner join or left outer join), and makes this data available for reporting and analysis. Storing the data in BW Accelerator or in an SAP HANA database also ensures faster access to data in the query12.

•C. Define new restricted key figures: This is what a Composite Provider allows you to do in SAP BW/4HANA. A Composite Provider can define new restricted key figures based on the existing key figures of the underlying InfoProviders. Restricted key figures are key figures that are restricted by one or more characteristics13.

•E. Integrate SAP HANA HDI calculation views: This is what a Composite Provider allows you to do in SAP BW/4HANA. A Composite Provider can integrate SAP HANA HDI calculation views as part of its data sources, using a virtual table or an external SAP HANA view. This can enable mixed modeling scenarios that leverage both SAP BW/4HANA and SAP HANA capabilities14.

References:

•1 https://help.sap.com/doc/saphelp_scm700_ehp02/7.0.2/en-US/63/f3c416bcbf4730bb86e62ef8a54e17/content.htm

•2 https://blogs.sap.com/2018/12/14/implementing-mixed-modeling-in-bw4hana-using-composite-provider/

•3 https://help.sap.com/doc/saphelp_nw75/7.5.5/en-US/42/f93a83ae5546d3a7cfd7ff09e25a2b/content.htm

•4 https://help.sap.com/doc/SAP_BW4HANA_CONTENT/06e872f914a44d77b6c692b0273ca400/20b4b01f5baf46af8fbd439c741adf00.html

•C. Accelerated SAP BW/4HANA implementation using ready-made models: This is an advantage of using SAP BW/4HANA business content. Business content provides a preconfigured set of application-specific information models based on consistent metadata in SAP BW/4HANA. It can be used without adjustment, be adjusted or enhanced by the customer, or serve as a template to help the customer create his own data models. This can speed up the implementation process and reduce the development effort12.

•D. Ability to combine business content objects with custom-defined objects: This is an advantage of using SAP BW/4HANA business content. Business content objects can be integrated with custom-defined objects using CompositeProviders or other modeling tools. This can enable flexible and agile data modeling and analysis according to the customer’s specific needs13.

References:

•1 https://www.sap.com/documents/2020/06/3cbbd4de-9a7d-0010-87a3-c30de2ffd8ff.html

•2 https://help.sap.com/docs/SAP_BW4HANA_CONTENT/06e872f914a44d77b6c692b0273ca400/20b4b01f5baf46af8fbd439c741adf00.html

•3 https://help.sap.com/docs/SAP_BW4HANA/107a6e8a38b74ede94c833ca3b7b6f51/f851415842154 e59a5f038e458b97a0b.html

•A. SAP Data Services: This tool can leverage the Write Interface for DataStore objects (advanced) to push data into the inbound table of DataStore objects (advanced) using RFC or HTTP calls. This can improve the performance and flexibility of data integration scenarios12.

•B. SAP Landscape Transformation Replication Server: This tool can leverage the Write Interface for DataStore objects (advanced) to push data into the inbound table of DataStore objects (advanced) using RFC or HTTP calls. This can improve the performance and flexibility of data replication scenarios13.

References:

•1 https://help.sap.com/docs/r/107a6e8a38b74ede94c833ca3b7b6f51/2.0.6/en-US/8127edbcf2fa488ba04dfc1751d5261d.html

•2 https://blogs.sap.com/2020/08/17/sap-bw-4hana-write-interface-enabled-adso-connected-to-a-3rd-party-tool/

•3 https://help.sap.com/docs/r/107a6e8a38b74ede94c833ca3b7b6f51/2.0.4/en-US/8127edbcf2fa488ba04dfc1751d5261d.html

The delta merge process is used to transfer data modifications from the delta storage to the main storage in SAP HANA database. It can be initiated in SAP BW/4HANA in the following ways:

•By using a specific process type in a process chain, called Trigger for DB Merge. This process type can be added to a process chain and linked to the loading processes that require a delta merge. The process type allows specifying the object type and name for the delta merge.

•By using the SAP BW/4HANA data load monitor, which is a web-based tool for monitoring and managing data loads. The data load monitor has an option to trigger a database merge for an object after a successful data load.

•B. Reporting is done based on a union of the inbound and active tables: This is a behavior that is specific to the Data Mart DataStore Object modeling property. The query reads data from both the inbound table and the active table of the DataStore object, which means that it is not necessary to activate the data to be able to see all the data. The data read is consistent and stable, since data is only included up to the first inconsistent request12.

•D. The records are treated as if all characteristics are in the key: This is a behavior that is specific to the Data Mart DataStore Object modeling property. No keys can be specified for this type of DataStore object, but when the data is activated, it is grouped according to the aggregation behavior of all characteristics. Therefore, key figures cannot be overwritten and only additive deltas can be loaded12.

References:

•1 https://help.sap.com/docs/SAP_BW4HANA/107a6e8a38b74ede94c833ca3b7b6f51/1961a9b62f054cc5a4f0d98485b82fa9.html

•2 https://help.sap.com/docs/r/dd104a87ab9249968e6279e61378ff66/11.1.0/en-US/9cf20bb96e254f6b9b5bf1c9c1413f35.html