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IBM C2090-303 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Performance Tuning and Optimization | - Memory and resource optimization - Parallel execution tuning - Partitioning strategies |
| DataStage Architecture and Components | - Parallel processing architecture - DataStage Director, Designer, and Administrator - Server vs Parallel jobs concepts |
| Job Design and Development | - Data flows and sequencing - Transformer stage usage - Job stages and links |
| Administration and Troubleshooting | - Environment configuration and deployment - Error handling and debugging - Job monitoring and logging |
| Data Integration and Connectivity | - Database connectors (ODBC, JDBC) - Flat file and sequential file handling - Enterprise system integration |
IBM InfoSphere DataStage v9.1 Sample Questions:
What two repositories does the Source Code Control Integration for DataStage and QualityStage serve? (Choose two.)
- A. Information Analyzer Repository
- B. Information Server metadata Repository
- C. Source Code Repository
- D. Universe Project Repository
- E. WebSphere Repository
Correct Answer: B,C 🗳️
Identify the two delimiter areas available to be configured in the Sequential File format tab properties? (Choose two.)
- A. File delimiter
- B. Final delimiter
- C. Field delimiter
- D. End of group delimiter
- E. Null delimiter
Correct Answer: B,C 🗳️
A DataStage job uses an Inner Join to combine data from two source parallel datasets that were written to disk in sort order based on the join key columns. Which two methods could be used to dramatically improve performance of this job? (Choose two.)
- A. Explicitly specify hash partitioning and sorting on each input to the Join stage.
- B. Unset the Preserve Partitioning flag on the output of each parallel dataset.
- C. Disable job monitoring.
- D. Add a parallel sort stage before each Join input, specifying the "Don't Sort, Previously Grouped" sort key mode for each key.
- E. Set the environment variable $APT_SORT_INSERTION_CHECK_ONLY.
Correct Answer: D,E 🗳️
The effective use of naming conventions means that objects need to be spaced appropriately on the DataStage Designer canvas. For stages with multiple links,expanding the icon border can significantly improve readability. This approach takes extra effort at first, so a pattern of work needs to be identified and adopted to help development. Which feature of Designer can improve development speed?
- A. Show Performance Statistics Feature
- B. Repository Layout
- C. Palette Layout
- D. Snap to Grid Feature
Correct Answer: D 🗳️
Which stage classifies data rows from a single input into groups and computes totals?
- A. Aggregator stage
- B. Compare stage
- C. Modify stage
- D. Transformer stage
Correct Answer: A 🗳️
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