IBM C2090-421 exam : InfoSphere DataStage v8.5

C2090-421 Exam Simulator
  • Exam Code: C2090-421
  • Exam Name: InfoSphere DataStage v8.5
  • Updated: Jul 26, 2026
  • Q & A: 194 Questions and Answers

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IBM C2090-421 exam simulator

IBM C2090-421 Exam Syllabus Topics:

SectionObjectives
DataStage Architecture and Components- InfoSphere DataStage architecture overview
  • 1. DataStage project structure and repositories
    • 2. Parallel vs server job architecture
      Job Design and Development- Server jobs and parallel jobs design
      • 1. Stages and links configuration
        • 2. Transformer stage usage
          Performance Tuning and Optimization- Parallel processing optimization
          • 1. Job tuning techniques
            • 2. Partitioning and parallelism settings
              Data Integration and Connectivity- Data sources and connectors
              • 1. Flat file and sequential file processing
                • 2. Database connectivity (ODBC, JDBC)
                  Administration and Troubleshooting- Monitoring and debugging jobs
                  • 1. Job sequencing and control flow
                    • 2. Logging and error handling

                      IBM InfoSphere DataStage v8.5 Sample Questions:

                      1. What is the lowest CPU cost partitioning method?

                      A) Random
                      B) Entire
                      C) Hash
                      D) Round Robin


                      2. Which Oracle data type conversion is correct?

                      A) Oracle data type NUMBER converts to DECIMAL(38, 0) in Oracle Enterprise stage.
                      B) Oracle data type NUMBER(6, 0) converts to INT32 in Oracle Enterprise.
                      C) Oracle data type RAW converts to RAW in Oracle Enterprise stage.
                      D) Oracle data type NUMBER(15, 0) converts to INT32 in Oracle Enterprise stage.


                      3. Which three of the following are valid options for the dsjob command? (Choose three.)

                      A) Accessing log files
                      B) Setting an alias for a job
                      C) Purging log files
                      D) Stopping a job
                      E) Compiling a job


                      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.


                      5. Which requirement must be met to read from a database in parallel using the ODBC connector?

                      A) Configure environment variable $APT_MAX_TRANSPORT_BLOCK_SIZE.
                      B) Set the Enable partitioning property to Yes.
                      C) ODBC connector always reads in parallel.
                      D) Configure environment variable $APT_PARTITION_COUNT.


                      Solutions:

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

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