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IBM Assessment: IBM InfoSphere DataStage v9.1 Assessment : A2090-303
- Exam Code: A2090-303
- Exam Name: Assessment: IBM InfoSphere DataStage v9.1 Assessment
- Updated: Sep 08, 2026
- Q & A: 134 Questions and Answers
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IBM A2090-303 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Integration and Quality | - Handling heterogeneous data sources - Data cleansing and validation concepts |
| Stages and Transformations | - Data transformation and mapping techniques - Common stages (Transformer, Lookup, Join, Aggregator) |
| Administration and Deployment | - Monitoring and troubleshooting DataStage jobs - Project deployment and environment management |
| Performance Tuning and Optimization | - Resource management and optimization strategies - Parallel job performance tuning techniques |
| DataStage Fundamentals | - Parallel processing concepts and framework - Architecture and components of IBM InfoSphere DataStage |
| Job Design and Development | - Designing server and parallel jobs - Job sequences and control flow |
IBM Assessment: IBM InfoSphere DataStage v9.1 Assessment Sample Questions:
Question #1
Which method is used to specify when to stop a job because of too many rejected rows with an ODBC Connector?
- A. In the Abort when field, select Count
- B. In the Abort when field, select Max
- C. In the Abort when field, select Rows
- D. In the Abort when field, select Amount
Answer: C
Question #2
A job validates account numbers with a reference file using a Join stage, which is hash partitioned by account number. Runtime monitoring 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. Add a Sort stage in front of the Join stage. Sort by account number.
- C. Change the number of nodes in the configuration file.
- D. Use Round Robin partitioning on the stream and Entire partitioning on the reference.
Answer: C
Question #3
Configuring the weighting column of an Aggregator stage affects which two options. (Choose two.)
- A. Uncorrected Sum of Squares
- B. Average of Weights
- C. Coefficient of Variation
- D. Maximum Value
- E. Sum
Answer: A,E
Question #4
You are asked by management to document all jobs written to make future maintenance easier. Which statement is true about annotations?
- A. The background for the Description Annotation stage can be changed for each unique stage.
- B. The short job description can be identified within the Description Annotation stage.
- C. The Description Annotation stage can be added several times at different locations to identify business logic.
- D. The Description Annotation stage contains both the short and full descriptions for the job.
Answer: B
Question #5
The parallel framework supports standard and complex data types in the SQL type column tab property. Identify the two complex data types? (Choose two.)
- A. Vector
- B. Binary trees
- C. Linked list
- D. VarChar
- E. Subrecord
Answer: A,E
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