1z0-1094-23 Oracle Cloud Database 2023 Migration and Integration Professional Free Practice Exam Questions (2025 Updated)

The VIEWS_AS_TABLES parameter in Oracle Data Pump allows users to export data from views as if they were tables. This is particularly useful when you need to export a subset of data based on specific criteria or joins that are encapsulated within a view, enabling more granular control over the data export process.

Understanding the character set of databases is crucial when planning a database migration to Oracle Cloud Infrastructure (OCI). The character set determines how text data is stored and can affect data compatibility, application functionality, and performance. Ensuring compatibility between the source and target database character sets is essential to prevent data loss or corruption during the migration process.

Oracle Zero Downtime Migration (ZDM) leverages Oracle Data Guard technology for database migrations from on-premises to Oracle Cloud, ensuring minimal downtime by synchronizing the source and target databases until the cutover phase, making it an effective method for database migration projects.

When a data integration job is submitted to an Oracle Data Integrator (ODI) agent, it can execute various tasks including operations on models or data stores, execution of runtime scenarios or load plans, and execution of design-time objects like mappings or packages. These tasks enable comprehensive data integration workflows, frominitial data extraction and transformation to loading the processed data into target systems.

Oracle Exadata Cloud Service is designed to consolidate numerous Oracle Databases, providing high performance, scalability, and reliability. It offers a cloud-based platform with the same Exadata optimizations found in on-premises deployments, making it ideal for large data center migrations to Oracle Cloud.

Oracle Data Guard is the method that provides the least downtime for database migration. It ensures high availability, data protection, and disaster recovery for Oracle databases. By maintaining a synchronized standby database, Data Guard enables seamless role transitions and minimal downtime during planned maintenance, making it an optimal choice for migrations requiring continuous availability.

When migrating to Exadata Cloud Service, upgrading the source database may be required to ensure compatibility with the target environment. Exadata Cloud Service typically supports newer database versions, and upgrading ensures that the source database can leverage Exadata's advanced features and optimizations.

For Oracle Database sources in ODI projects, the Reverse Knowledge Module (RKM) for Oracle is used for reverse-engineering database objects, and the Loading Knowledge Module (LKM) SQL to Oracle is used for extracting and loading data. These KMs enable efficient metadata capture and data integration from Oracle sources.

To quickly load data into a cloud database by dragging and dropping a file in a web browser, the Data Load tab of the SQL worksheet in Database Actions is the ideal tool. This feature simplifies the process of importing data into Oracle Cloud databases, allowing users to easily upload files without the need for complex database commands or scripts.

Online Pluggable Database (PDB) relocation allows for the movement of a PDB from one CDB to another with minimal disruption. It supports relocating a PDB with an ASCII character set to a CDB with the AL32UTF8 character set, enabling character set conversion. Furthermore, PDB relocation can achieve near-zero downtime when there is no version change between the source and target CDBs, enhancing operational continuity.

Data Pump is a versatile Oracle utility that facilitates high-speed data transfer between Oracle databases. It indeed supports cross-endian formats, meaning it can handle data migration between systems with different byte orders. Additionally, Data Pump supports cross-platform migration, allowing for the movement of data across different operating systems and architectures, making it a valuable tool for database migration projects.

The unplug/plug a PDB migration method requires source databases to be version 12c or later, where the multitenant architecture was introduced. Target databases must be 18c or later to support new features and enhancements, ensuring compatibility and successful migration of pluggable databases.

Port 443 is used by both the source and target systems to access Object Storage during Zero Downtime Migration. This port is commonly associated with secure HTTPS traffic, ensuring encrypted and secure communication with cloud storage services.

For Oracle Zero Downtime Migration (ZDM) to perform a successful database migration with the physical workflow, root user or SSH key-based access to both source and target database servers is required. This access ensures ZDM can execute necessary operations on the database servers, facilitating a smooth migration process.

Data Pump supports parallelism exclusively in the Oracle Database Enterprise Edition, leveraging the ability to perform multiple data-intensive operations concurrently. This feature enhances performance and efficiency during data export and import processes, particularly for large databases.

In the context of using the RMAN DUPLICATE command for database migration, the SQLNET.ORA file is used to specify the location of the Database Wallet, which contains the security credentials for Transparent Data Encryption (TDE). This configuration ensures that RMAN can access encrypted data during the duplication process, facilitating a secure migration.

For ZDM to communicate between the source and target database servers during a physical online migration, Port 22 (SSH) is used for secure shell access, and Port 1521 (Oracle Net Listener) is used for database connections. These ports must be open to enable ZDM to execute commands and transfer data.

The error ORA-19914 indicates encryption issues during RMAN backup to cloud storage. Enabling encryption with "SET ENCRYPTION ON" without a proper encryption key or missing the Object Storage encryption-at-rest key can lead to this error. Ensuring encryption keys are correctly configured and accessible is crucial for successful RMAN backups to the cloud.

In Oracle Database architecture, a Container Database (CDB) can contain one or more Pluggable Databases (PDBs). This multi-tenant architecture allows for the efficient management of multiple databases within a single container, optimizing resource usage and simplifying database administration.