Free SAP C_DBADM_2404 Practice Exam with Questions & Answers | Set: 2

When installing the SAP HANA database system using the HDBLCM tool in batch mode, certain parameters are mandatory to initiate the installation process. These include the SAP HANA system ID (SID) (Option A) and the Installation path (Option D). The system ID is crucial for identifying the specific instance of SAP HANA being installed or managed, while the installation path determines where the software components will be physically placed on the server. The password of user sapadm (Option B) and data and log paths (Option C) are not mandatory parameters for the installation; they are configurable based on system requirements and security practices.

The maximum number of replicas you can configure for SAP HANA Cloud is 2. SAP HANA Cloud allows setting up a primary instance and up to two secondary (replica) instances. This is designed to enhance high availability and disaster recovery capabilities. Secondary instances can be used for failover scenarios, where if the primary instance fails, one of the secondary instances can take over to ensure continuity of service without data loss.References= This information is consistent with SAP HANA Cloud documentation and best practices for database replication and high availability setups.

Database Security

One of the backup options provided by the SAP HANA database is:

• Data snapshots: This method captures the state of the database at a particular point in time, facilitating quick backups that do not significantly impact database performance.

References=Data snapshots are described in SAP HANA documentation as an effective way to quickly backup the database without the overhead of traditional full backups.

Backup and Recovery

In SAP HANA Cloud, certain tasks are managed by the cloud provider to ensure seamless operation and maintenance of the infrastructure, which supports the SAP HANA database. The responsibilities include:

• Tuning the database to run optimally on the underlying operating system and hardware (A): This involves adjustments and optimizations that make sure the database operates efficiently with the available resources.
• Installing, configuring, and upgrading the operating system (C): These are typical responsibilities of a cloud provider, ensuring that the OS on which SAP HANA runs is correctly set up, secured, and kept up-to-date.
• Sizing, provisioning, and monitoring the database (D): The cloud provider also handles the initial sizing based on requirements, provisions the database, and continually monitors its performance and health to anticipate and address any issues. Managing users, roles, and permissions within the database (E) typically remains an administrative task for the SAP HANA customers rather than the cloud provider, focusing more on business rules and governance. Backing up the operating system and the database software (B) also often falls under the responsibilities managed by the customer, depending on the service model (IaaS vs. PaaS).

SAP HANA Architecture

To prevent changes to system properties in tenant databases within SAP HANA, you would use theglobal.inifile. This file is used to configure system-wide settings across the entire SAP HANA instance, including tenant databases.global.inihandles the global configuration parameters that affect all databases on the instance, making it the appropriate choice for enforcing settings that block or restrict modifications to system properties.

References=This approach is consistent with SAP HANA administration documentation that specifiesglobal.inias the key file for managing global configuration settings.

Database Administration

In the SAP HANA 2.0 database system, the supported file systems for data and log volumes are crucial for ensuring optimal performance and reliability. The correct answers are:

• XFS (A): XFS is widely recommended for use with SAP HANA due to its high performance, scalability, and reliability with large data volumes, which are typical in an in-memory database such as SAP HANA.
• GPFS (C): Also known as IBM Spectrum Scale, GPFS is a high-performance shared-disk file system that can be used with SAP HANA for scenarios requiring distributed file systems with high availability and large-scale data capacity. EXT4 (D) and Btrfs (B) are not recommended or supported for SAP HANA installations, especially for production environments, due to their limitations in handling large files and high I/O operations effectively, which are critical for the performance demands of SAP HANA.

References= This information is based on the SAP HANA administration and deployment guides, which specify the requirements and recommendations for file systems to ensure the stability and performance of the database system.

SAP HANA Architecture

TheINIFILE ADMINsystem privilege is required to restrict features for tenant databases in the SAP HANA cockpit. This privilege allows administrators to manage and modify configuration files (.ini files), which is crucial for controlling database features and restrictions.

References=The requirement for the INIFILE ADMIN privilege for managing tenant database features is detailed in SAP HANA security documentation and SAP help resources.

Database Administration

The SAP HANA hardware and cloud measurement tool (HCMT) is utilized to check and assess certain hardware and system parameters crucial for SAP HANA's optimal performance. With this tool, you can check Linux kernel information (Option A), which is vital as SAP HANA is optimized for specific kernel versions for stability and performance. Additionally, it allows you to perform NUMA (Non-Uniform Memory Access) memory bandwidth tests (Option D), which are critical for understanding how memory is accessed and used by the SAP HANA system. The tool does not, however, provide functionalities to check cloud connector status (Option B) or CPU states (Option C) directly.

Backup and Recovery

In the SAP HANA cockpit sessions app, session-specific data can be saved in various formats that support easy access and analysis. These formats include HTML, JSON, and CSV. HTML files are useful for viewing formatted data in web browsers, providing a user-friendly layout. JSON files offer a lightweight data interchange format that is easy for machines to parse and generate, suitable for data manipulation programmatically. CSV files are commonly used for data portability between different programs and are ideal for large datasets that need to be viewed and analyzed in spreadsheet applications.References= SAP HANA cockpit documentation on data export capabilities.

Monitoring and Troubleshooting

You can resume the failed recovery of your productive SAP HANA tenant database in the following situations:

• An aborted recovery of a delta data backup: Resuming from a delta backup is possible because these backups capture changes since the last full or another delta backup, allowing the recovery process to continue from the last successful point.
• An aborted recovery of a log backup: Log backups contain all the transactions since the last log or data backup. If the recovery from these backups is interrupted, it can be resumed because the log contains all necessary information to bring the database to a consistent state up to the point of failure.

References=SAP HANA backup and recovery documentation explains the mechanisms and capabilities of the database's recovery features, including scenarios where recovery processes can be resumed after interruption.

Backup and Recovery