* Before building an HDB module in SAP Web IDE for SAP HANA, a space must be assigned to allocate the HDI container within the SAP HANA environment.
* The space is part of the SAP HANA Cloud Platform's multi-tenant environment and determines where the container is deployed.
References: SAP HANA HDI development and SAP Web IDE for SAP HANA configuration (SAP Help Portal - SAP Web IDE).

* Single Start Process (Answer A):
* A process chain can have only one start process, ensuring a clear entry point for execution.
* Schedule Without Predecessor (Answer D):
* The start process is unique in that it does not require a predecessor, allowing it to initiate the process chain directly.
* Embedded in a Meta Chain (Option B):Any process can be embedded in a meta chain.
* Successor Process (Option C):The start process cannot have a predecessor by design.
Incorrect Options:References:
* SAP Help Portal - Process Chains Overview
* SAP BW/4HANA Process Chain Documentation

B. SAP query:
* Allows creating a DataSource based on user-defined queries in the SAP ERP system.
D. ABAP function module:
* Custom function modules enable flexible and tailored data extraction.
E. Database view:
* Direct database views provide an efficient and straightforward way to extract data from underlying tables.
References:SAP ERP DataSource creation documentation (SAP Help Portal - Generic DataSources).

* Snapshot Support in a DataStore object (advanced) retains historical data snapshots. While this feature enables detailed historical analysis, the data activation process is slower because it requires additional management of snapshots during activation.
References:SAP BW/4HANA DataStore Object Advanced Guide (SAP Help Portal).

* Primary Key Requirement (Answer B):
* The S-API extractor requires a primary key to track changes and manage delta loads effectively.
* Enable ODP (Answer D):
* ODP provides the framework for delta-enabled extraction, crucial for real-time data integration into SAP Datasphere.
* Real-Time Access (Option A):While beneficial, real-time access is not a prerequisite for delta mode.
* Function Module (Option C):The extractor's structure, not its implementation method, is the key requirement for delta mode.
Incorrect Options:References:
* SAP Datasphere and S-API Extractor Configuration Documentation