IBM Cloud Pak for Data v4.x Data Engineer Intermediate Practice Exam: Medium Difficulty 2025

A data engineer is deploying Cloud Pak for Data on Red Hat OpenShift and needs to ensure high availability for the platform services. The organization requires that control plane components can tolerate node failures. Which architectural configuration should be implemented?

A data engineering team needs to integrate data from an on-premises Oracle database and a cloud-based Salesforce system into Cloud Pak for Data. The Oracle database contains 50 million records that need daily incremental updates, while Salesforce data requires real-time synchronization. What is the most appropriate combination of tools?

An organization is implementing a data governance framework in Cloud Pak for Data. They need to ensure that personally identifiable information (PII) is automatically discovered, classified, and masked before being accessed by the analytics team. Which sequence of components should be configured?

A DataStage job processing 10 million records is experiencing performance degradation. Analysis shows that a single transformer stage is creating a bottleneck. The transformer performs complex calculations on 15 columns. What is the best optimization approach?

A data engineer needs to create a virtualized view that joins customer data from three different sources: DB2, PostgreSQL, and a REST API. The DB2 table has 5 million rows, PostgreSQL has 500,000 rows, and the REST API returns up to 1,000 records. What is the recommended approach for optimal query performance?

An organization has implemented Watson Knowledge Catalog with multiple catalogs for different business units. The data governance team needs to enforce a policy where any dataset containing credit card numbers must be approved by the compliance team before being published to any catalog. How should this be configured?

During a Cloud Pak for Data upgrade from v4.0 to v4.5, the data engineering team notices that several DataStage jobs are failing with connection errors to external databases. The connections worked before the upgrade. What is the most likely cause and solution?

A data engineer is designing a deployment topology for Cloud Pak for Data that will support both development and production environments. The organization wants to minimize costs while maintaining proper isolation. Which deployment strategy is most appropriate?

A data governance officer needs to track data lineage across multiple tools in Cloud Pak for Data, including DataStage ETL jobs, Data Virtualization views, and Watson Studio notebooks. Users should be able to see the complete data flow from source systems to analytical models. What capabilities should be configured?

A DataStage parallel job is reading from a source database with 8 partitions and writing to a target with 4 partitions. The job is running slower than expected. Analysis shows uneven data distribution in the source causing some partitions to process significantly more data. What optimization should be applied?