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

A2090-421 real exams

Exam Code: A2090-421

Exam Name: Assessment: InfoSphere DataStage v8.5

Updated: Sep 15, 2026

Q & A: 194 Questions and Answers

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IBM A2090-421 Exam Syllabus Topics:

SectionObjectives
Performance Tuning and Optimization- Parallel job optimization
  • 1. Memory and CPU tuning
    • 2. Partitioning strategies
      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
              Debugging and Troubleshooting- Job monitoring
              • 1. Log analysis
                • 2. Error handling techniques
                  Data Transformation and Processing- Data cleansing techniques
                  • 1. Filtering and validation
                    • 2. Data type handling
                      - Aggregation and sorting
                      • 1. Sort stage usage
                        • 2. Aggregation logic
                          Job Control and Sequences- Sequence jobs
                          • 1. Control flow design
                            • 2. Triggers and conditions
                              Job Design and Development- Job types
                              • 1. Server jobs
                                • 2. Parallel jobs
                                  - Stages and links
                                  • 1. Lookup stages
                                    • 2. Transformer stage logic

                                      IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

                                      Question #1

                                      How are Host Systems added to the Shared Metadata repository? (Select two)

                                      • A. Select Repository > Metadata Sharing > Management from the main menu to open the Shared Metadata Management tool
                                      • B. Use the DataStage Administrator application to import new Host Systems.
                                      • C. Use the Import/Export Manager when importing shared metadata.
                                      • D. Use the shared table creation wizard from the DataStage client to add a new Host System.
                                      Reveal Solution  Discussion  0

                                      Correct Answer: A  🗳️

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                                      Question #2

                                      You are using the Change Capture stage in your job design to identify changes made to the input link (before image) to obtain the results in the output link. This job will be using a multi-node configuration file when executed. By default, the Change Capture stage produces an output change link with which two characteristics? (Choose two.)

                                      • A. added column named Change_Code
                                      • B. added column named Difference_Value
                                      • C. Table Definition based on the after input link
                                      • D. Table Definition based on the keys of the input link
                                      Reveal Solution  Discussion  0

                                      Correct Answer: A,C  🗳️

                                      Question #3

                                      An important top level Job Sequence has been modified. It controls a process flow consisting of sub Job Sequences, Routines and Parallel Jobs. You must set up a new project to test the top level Job Sequence. You are not allowed to move any repository objects that are not impacted by the top level Job Sequence.
                                      What two options would identify only the repository objects impacted by the change made to the top level Job Sequence? (Select two)

                                      • A. On Export check Include dependencies of
                                      • B. Click Impact Analysis Icon on Designer Client Toolbar.
                                      • C. Repository Advanced Find Where Used
                                      • D. Select the top Level Job Sequence and Dependency of (deep).
                                      Reveal Solution  Discussion  0

                                      Correct Answer: A,C  🗳️

                                      Question #4

                                      In a file defining a partial schema, which three properties define the record? (Choose three.)

                                      • A. intact
                                      • B. delim
                                      • C. text
                                      • D. record_delim_string
                                      • E. record_length
                                      Reveal Solution  Discussion  0

                                      Correct Answer: A,D,E  🗳️

                                      Question #5

                                      You are using the Change Capture stage in your job design to identify changes made to the input link (before image) to obtain the results in the output link. This job will be using a multi-node configuration file when executed.
                                      What are two requirements on the input link data for the Change Capture stage? (Select two)

                                      • A. Key partitioned
                                      • B. Merged links
                                      • C. Sorted
                                      • D. Sequential mode
                                      Reveal Solution  Discussion  0

                                      Correct Answer: B,D  🗳️

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