IBM C2090-421 exam : InfoSphere DataStage v8.5

C2090-421 Exam Simulator
  • Exam Code: C2090-421
  • Exam Name: InfoSphere DataStage v8.5
  • Updated: Oct 02, 2026
  • Q & A: 194 Questions and Answers

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IBM C2090-421 Exam Syllabus Topics:

SectionObjectives
Topic 1: DataStage Architecture and Fundamentals- Core architecture concepts
  • 1. Project environment and repository structure
    • 2. Parallel processing architecture overview
      Topic 2: Data Connectivity and Integration- Source and target systems
      • 1. Database connectivity (ODBC/JDBC)
        • 2. Sequential and file-based data processing
          Topic 3: Job Design and Development- Building DataStage jobs
          • 1. Server and parallel job design principles
            • 2. Transformer and stage configuration
              Topic 4: Monitoring and Administration- Job control and troubleshooting
              • 1. Job monitoring and debugging tools
                • 2. Logging and error handling
                  Topic 5: Performance and Optimization- Parallel execution tuning
                  • 1. Performance optimization techniques
                    • 2. Partitioning strategies

                      IBM InfoSphere DataStage v8.5 Sample Questions:

                      Question #1

                      Click on the Exhibit button.

                      Which environment variable would provide this information?

                      • A. APT_SHOW_COMPONENT_CALLS
                      • B. APT_STATUS
                      • C. APT_PM_PLAYER_TIMING
                      • D. APT_DEBUG_PARTITION
                      Reveal Solution  Discussion  0

                      Correct Answer: C  🗳️

                      Question #2

                      When you run a parallel job, any error messages and warnings are written to the job log and can be viewed from the Director client. What two levels of message handlers are there? (Choose two.)

                      • A. job level
                      • B. stage level
                      • C. project level
                      • D. record level
                      Reveal Solution  Discussion  0

                      Correct Answer: A,C  🗳️

                      Question #3

                      Which three of the following are valid schema formats? (Choose three.)

                      • A. Integer Columns
                      • B. Decimal Columns
                      • C. Raw Columns
                      • D. Aggregator Columns
                      • E. Total Columns
                      Reveal Solution  Discussion  0

                      Correct Answer: A,B,C  🗳️

                      Question #4

                      You have been asked to delete a shared container from the project by your customer. Before you do this you want to make sure it will not impact other objects in the project. How will you ensure that deleting the shared container will not cause a failure when jobs are recompiled?

                      • A. Select the shared container, Right-click on the Where used (deep) command.
                      • B. Select the shared container, Right-click on the Dependencies (deep) command.
                      • C. Advanced find, set Dependencies Of field equal to the container name, and Check the Option to Include nested results for Dependency searches.
                      • D. Select the shared container, Right-click on the Where used command.
                      Reveal Solution  Discussion  0

                      Correct Answer: A  🗳️

                      Question #5

                      In the job fragment shown in the exhibit, there are two Sort stages: the first (Sort1) sorts the data by state, the second (Sort2) sorts the data by state and area, No repartitioning occurs between the stages.
                      You have been asked to reduce the number of sorts to improve the performance of the job.

                      Which two ways might be used to accomplish this without changing how the job functions? (Select two)

                      • A. Remove the first Sort stage. Retain the existing sort keys in the second Sort stage.
                      • B. Remove the second Sort stage. Add area as an additional sort key.
                      • C. In the second Sort stage change the Sort Mode property of the state column to "Don't sort, previously sorted.".
                      • D. In the second Sort stage change the Sort Mode property of the area column to "Don't sort, previously sorted.".
                      Reveal Solution  Discussion  0

                      Correct Answer: A,D  🗳️

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