Most Recent SAP C_TADM_23 Exam Questions & Answers

In an AS ABAP-based SAP system, the lock table plays a crucial role in managing data consistency by preventing simultaneous write access to the same data by different transactions. The lock table is stored in:

D) Main memory of the host of the Central Services instance: The Central Services instance of an SAP system includes services like the Message Server and Enqueue Server. The lock table, managed by the Enqueue Server, resides in the main memory of the host running the Central Services instance. This placement is strategic because it allows for fast access to lock information, minimizing latency and ensuring that locks can be quickly granted and released. Storing the lock table in memory rather than on disk or in the database ensures high-performance lock management, which is critical for maintaining the system's overall responsiveness and stability.

This architecture underscores the importance of efficient lock management in ensuring data integrity and system reliability, particularly in environments with high transaction volumes.

During a standard installation of the SAP HANA database system, several key users are created or validated. The 'SYSTEM' user (A) is a superuser for the SAP HANA database, having full system privileges for database administration tasks. The 'sapadm' user (D) is a Linux or UNIX operating system user that is created during the installation of the SAP HANA database and is used for administering the SAP HANA system at the operating system level. The user '<sid>crypt' (B) and 'SAP<SID>' (C) are not standard users that are created or validated during the standard SAP HANA database installation process. The SAP<SID> user is typically associated with SAP system instances rather than the database installation, and '<sid>crypt' is not a standard user in the SAP or SAP HANA landscape.

SAP HANA as a system database is essential for certain types of SAP Fiori applications due to their reliance on real-time data processing and analytics capabilities. Analytical apps (A) leverage the SAP HANA database to provide real-time insights by directly accessing operational data. Fact sheet apps (C) also require SAP HANA as they enable users to drill down into the details of a business operation directly from their Fiori Launchpad, pulling data in real-time from the HANA database. Classic applications (B) and transactional apps (D), on the other hand, do not inherently require SAP HANA as the system database, as they can function on any database that supports the underlying business logic and data persistence requirements.