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IBM C2090-421 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Performance and Parallelism | - Parallel processing concepts
|
| Job Execution and Troubleshooting | - Monitoring and debugging
|
| Job Design and Development | - Stages and links
|
| Data Transformation and ETL Logic | - Data mapping and transformation rules
|
| DataStage Architecture | - InfoSphere DataStage components
|
IBM InfoSphere DataStage v8.5 Sample Questions:
Which environment variable determines where the temporary scores are stored?
- A. APT_HIGH_SCORE
- B. APT_SAVE_SCORE
- C. APT_JOB_MON
- D. APT_DUMP_SCORE
What are the three aggregation types can be set in the Aggregator stage? (Select three)
- A. Count Values
- B. Recalculate
- C. Sum Rows
- D. Calculate
- E. Count Rows
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Which three environment variables are valid job score environment variables? (Select three)
- A. APT JAVA SCORE
- B. APT_SAVE_SCORE
- C. APT_LOW_SCORE
- D. APT_THIN_SCORE
- E. APT_DUMP_SCORE
You have a 3TB dataset hash-partitioned on CustID in a clustered environment. You need to join this dataset with 1GB of reference data on OrderID. Which technique is most appropriate?
- A. Use Lookup stage, select auto partitioning for the stream link and hash-partition the reference link on CustI
- B. Use Join stage, hash-partition and sort both link on OrderID.
- C. Use Lookup stage, select auto partitioning for the stream link and entire partitioning for the reference link.
- D. Use Lookup stage, select auto partitioning for both link.
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 do not need both input and output links in a single web service operation.
- D. You need the Web service to act as either a data source or a data target during an operation.
