Exam Name: InfoSphere DataStage v8.5
Certification Provider: IBM
Corresponding Certification: IBM Specialist
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IBM C2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| DataStage Architecture and Components | 20% | - Parallel framework concepts - Project and repository management - Client and server components - InfoSphere Information Server architecture |
| Job Execution, Monitoring and Troubleshooting | 15% | - Director client usage - Debugging and validation - Job logs and error handling - Performance optimization |
| Advanced Features and Integration | 10% | - Metadata management - Source control integration - Job sequences and control flow |
| Job Design and Development | 30% | - Parameter sets and environment variables - Sequential and parallel job creation - Stage usage and configuration - Data linking and partitioning |
| Data Transformation and Processing | 25% | - Slowly Changing Dimensions (SCD) - Lookup and reference data - Transformer stage logic - Handling NULL values and data types |
IBM InfoSphere DataStage v8.5 Sample Questions:
Which two statements are correct about XML stages and their usage? (Choose two.)
- A. XML Output stage converts relational tables and sequential files to XML hierarchical structures.
- B. XML Input stage transforms hierarchical XSLT data to tabular format.
- C. XML Input stage converts XML data to hierarchical format.
- D. XML Transformer stage converts an XML document to another XML hierarchical format.
Correct Answer: A,D 🗳️
How is Runtime Column Propagation (RCP) enabled for use in DataStage Jobs?
- A. Set the APT_ENABLE_RCP environment variable to TRUE.
- B. Use the DataStage Administrator to enable RCP for the project.
- C. Use the Info Server web console to enable RCP
- D. RCP is by default available for all DataStage Projects.
- E. Use RCP definition wizard to initialize RCP for project use.
Correct Answer: B 🗳️
The DB2 and Oracle Enterprise stages support logged and non-logged DBMS table operations. What is the non-logged operation that is supported by the DB2 and Oracle Enterprise stages?
- A. Delete
- B. Update
- C. Insert
- D. Load
Correct Answer: D 🗳️
In the exhibit, the Aggregator stage aggregates over CustomerID. The Join stage joins by CustomerID. When the score is created, DataStage will insert hash partitioners and tsort operators to ensure the correct results.
Which two choices will eliminate sort operators from being inserted at run-time? (Select two)
- A. Add a Sort stage before the Copy stage and specify Same partitioners for the links going into the Aggregator and Join stages.
- B. Add a Sort stage before the Aggregator stage and specify the Same partitioner for the link going into the Aggregator Set the $APT_SORTJNSERTION_CHECK_ONLY environment variable to "True".
- C. Add a Sort stage before the Copy stage and specify Auto partitioned for the links going into the Aggregator and Join stages.
- D. Add Sort stages in front of the Join stage and specify the Same partitioner for the links going into the Join. Set the $APT_NO_SORT_INSERTION environment variable to "True".
Correct Answer: A,D 🗳️
Which three source stages require a schema file when using RCP? (Choose three.)
- A. Complex Flat File Stage
- B. File Set Stage
- C. Data Set Stage
- D. Column Export Stage
- E. External Target Stage
Correct Answer: B,D,E 🗳️
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