IBM A2090-421 - Assessment: InfoSphere DataStage v8.5

IBM A2090-421 Actual PDF
  • Exam Code: A2090-421
  • Exam Name: Assessment: InfoSphere DataStage v8.5
  • Updated: Aug 12, 2026
  • Q & A: 194 Questions and Answers
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IBM A2090-421 Exam Syllabus Topics:

SectionObjectives
Topic 1: Debugging and Troubleshooting- Job monitoring
  • 1. Error handling techniques
    • 2. Log analysis
      Topic 2: Job Control and Sequences- Sequence jobs
      • 1. Control flow design
        • 2. Triggers and conditions
          Topic 3: Performance Tuning and Optimization- Parallel job optimization
          • 1. Memory and CPU tuning
            • 2. Partitioning strategies
              Topic 4: Job Design and Development- Stages and links
              • 1. Transformer stage logic
                • 2. Lookup stages
                  - Job types
                  • 1. Parallel jobs
                    • 2. Server jobs
                      Topic 5: Data Transformation and Processing- Aggregation and sorting
                      • 1. Sort stage usage
                        • 2. Aggregation logic
                          - Data cleansing techniques
                          • 1. Filtering and validation
                            • 2. Data type handling
                              Topic 6: InfoSphere DataStage Architecture- Parallel processing architecture
                              • 1. Runtime architecture components
                                • 2. Nodes and partitions
                                  - DataStage project structure
                                  • 1. Repository metadata concepts
                                    • 2. Projects and environments

                                      IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

                                      1. The number of File Set data files created depends upon what three items? (Choose three.)

                                      A) Number of physical processing nodes.
                                      B) File system limitations.
                                      C) Number of disks in the export or default disk pool connected to each processing node in the default node pool
                                      D) Schema definition of the file.
                                      E) Number of processing nodes in the default node pool.


                                      2. Which two job design techniques can be used to provide unique names to sequential output files that are used in multi-instance jobs? (Select two)

                                      A) Prepend/append the Invocation ID to the file name.
                                      B) Use the file name(s) from values contained in the data stream.
                                      C) Create the file name(s) from values contained in a value file.
                                      D) Use parameters to identify file names.


                                      3. What two stages are required to place Header and Detail records, which have different formats, into a single format? (Choose two.)

                                      A) Column Export Stage
                                      B) Column Import Stage
                                      C) Combine Stage
                                      D) Funnel Stage


                                      4. Your job design calls for using a target ODBC Connector stage. The target database is found on a remote server. The target table you are writing into contains a single column primary key. What are the three "Write mode" properties that allow the possibility of multiple SQL actions? (Choose three.)

                                      A) Insert then update
                                      B) Join then update
                                      C) Truncate then add
                                      D) Update then insert
                                      E) Delete then insert


                                      5. What two repositories does the Source Code Control Integration for DataStage and QualityStage serve? (Choose two.)

                                      A) Information Analyzer Repository
                                      B) Information Server meta-data Repository
                                      C) Source Code Repository
                                      D) Universe Project Repository


                                      Solutions:

                                      Question # 1
                                      Answer: B,C,E
                                      Question # 2
                                      Answer: A,D
                                      Question # 3
                                      Answer: A,D
                                      Question # 4
                                      Answer: A,D,E
                                      Question # 5
                                      Answer: B,C

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