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IBM A2090-421 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Job Development | - Stages and transformers usage - Job sequences and control logic - Parallel job design principles |
| Performance Optimization | - Job tuning and bottleneck analysis - Parallel processing optimization |
| Data Integration | - Data transformation techniques - Connectivity to data sources and targets |
| InfoSphere DataStage Architecture | - Components (Designer, Director, Administrator) - Server and Parallel Job Architecture |
| Administration and Troubleshooting | - Job monitoring and logging - Error handling and recovery |
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
What role must a user have to delete shared metadata assets from the repository?
- A. Business Glossary Administrator
- B. DataStage Administrator
- C. Common Metadata Administrator
- D. Information Analyzer User
- E. Common Metadata User
In which two situations would you use the Web Services Client stage? (Choose two.)
- A. You want to deploy a service.
- B. You need to create a WSDL.
- C. You need the Web service to act as either a data source or a data target during an operation.
- D. You do not need both input and output links in a single web service operation.
How are Host Systems added to the Shared Metadata repository? (Select two)
- A. Use the DataStage Administrator application to import new Host Systems.
- B. Select Repository > Metadata Sharing > Management from the main menu to open the Shared Metadata Management tool
- C. Use the shared table creation wizard from the DataStage client to add a new Host System.
- D. Use the Import/Export Manager when importing shared metadata.
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A job validates credit card numbers with a reference file using a Join stage, which is hash partitioned by card number. Examination of Job Monitor reveals that some partitions process many more rows than others. Assuming adequate hardware resources, which action can be used to improve the performance of the job?
- A. Replace the Join with a Merge stage.
- B. Break the input file into multiple files.
- C. Use Round Robin partitioning on the stream and Entire partitioning on the reference.
- D. Alter the number of partitions in the $APT_CONFIG_FILE.
What are two ways to specify a stylesheet in an XML input stage? (Choose two.)
- A. On the output link columns properties tab, identify an input column that contains the stylesheet URL.
- B. On the output link advanced properties tab, load the content or path of a stylesheet that is stored on the engine tier host.
- C. On the output link columns properties tab, type the stylesheet in the XLST box.
- D. On the output link advanced properties tab, type the stylesheet in the Stylesheet box.
