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IBM C2090-421 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| InfoSphere DataStage Architecture | - Parallel processing architecture
|
| Job Design and Development | - Job types
|
| Performance Tuning and Optimization | - Parallel job optimization
|
| Debugging and Troubleshooting | - Job monitoring
|
| Job Control and Sequences | - Sequence jobs
|
| Data Transformation and Processing | - Aggregation and sorting
|
IBM InfoSphere DataStage v8.5 Sample Questions:
You are asked by management to document all jobs written to make future maintenance easier. Which two statements are true about annotations? (Choose two.)
- A. The full job description can be identified within the Description Annotation stage.
- B. The Description Annotation stage contains both the short and full descriptions for the job.
- C. The background for the Description Annotation stage can be changed for each unique stage.
- D. The Description Annotation stage can be added several times at different locations to identify business logic.
Correct Answer: A,B 🗳️
You are setting up the parallel engine configuration file. Which two statements are true about file system efficiency? (Select two)
- A. Specify a directory for the resource disk in the partition where the engine is installed.
- B. In a clustered environment where NAS is used for a common storage, specify the internal disk for scratch disk.
- C. Using multiple scratch spaces in a logical node improves performance.
- D. Creating scratch disk space on an internal disk improves sort performance than NFS drive.
Correct Answer: A,B 🗳️
What are the three aggregation types can be set in the Aggregator stage? (Select three)
- A. Count Rows
- B. Count Values
- C. Recalculate
- D. Calculate
- E. Sum Rows
Correct Answer: A,C,D 🗳️
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Which option is required to identify a particular job player processes?Which option is required to identify a particular job? player processes?
- A. Set $APT_DUMP_SCORE to true.
- B. Use the DataStage Director Job administration screen to display active player processes.
- C. Set $APT_PM_SHOW_PIDS to true.
- D. Log onto the server and issue the command "ps -ef | grep ds".
Correct Answer: C 🗳️
Which requirement must be met to read from a database in parallel using the ODBC connector?
- A. ODBC connector always reads in parallel.
- B. Configure environment variable $APT_PARTITION_COUNT.
- C. Set the Enable partitioning property to Yes.
- D. Configure environment variable $APT_MAX_TRANSPORT_BLOCK_SIZE.
Correct Answer: C 🗳️
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