IBM C2090-421 : InfoSphere DataStage v8.5

  • Exam Code: C2090-421
  • Exam Name: InfoSphere DataStage v8.5
  • Updated: Jul 21, 2026   Q&As: 194 Questions and Answers

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IBM C2090-421 Exam Syllabus Topics:
SectionObjectives
DataStage Architecture and Components- InfoSphere DataStage architecture overview
  • 1. Parallel vs server job architecture
    • 2. DataStage project structure and repositories
      Administration and Troubleshooting- Monitoring and debugging jobs
      • 1. Logging and error handling
        • 2. Job sequencing and control flow
          Job Design and Development- Server jobs and parallel jobs design
          • 1. Transformer stage usage
            • 2. Stages and links configuration
              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. Database connectivity (ODBC, JDBC)
                    • 2. Flat file and sequential file processing
                      IBM InfoSphere DataStage v8.5 Sample Questions:

                      1. In your DB2 database you have column names that use characters # and $. Which two steps should be completed to allow DataStage to convert these characters into internal format and back as necessary? (Select two)

                      A) Set environment variable $DS_ENABLE_RESERVED_CHAR_CONVERT to true.
                      B) Avoid using the strings_025_and_026_in your IBM DB2 column names.
                      C) Set environment variable $DS_ENABLE_RESERVED_NUM_CONVERT to true.
                      D) Avoid using the strings_035_and_036_in your IBM DB2 column names.


                      2. Your job uses the MQ connector stage to read messages from an MQ queue. The job should retrieve the message ID into the MessageID field and parse the payload into two fields: Name is to get the first ten characters, Description is to get the remaining characters.
                      What will accomplish this?

                      A) First column is MessageID as Binary 24; second column is Name as Binary 10; select WSMG. MSPAYLOAD data element; third column is Description as VarBinary 200; select WSMG.MSPAYLOAD data element.
                      B) First column is MessageID; select the WSMQ.MSGID data element for the Message ID field; second column is Name; select WSMG.MSPAYLOAD data element; third column is Description; select WSMG.MSPAYLOAD data element.
                      C) First column is MessageID; select the WSMQ.MSGID data element for the Message ID field; second column is Name as Binary 10; third column is Description as VarBinary 200.
                      D) First column is MessageID; select the WSMQ.MSGID data element for the Message ID field; column is Description as VarBinary 200; third column is Name as Binary 10.


                      3. Records in a source file must be copied to multiple output streams for further processing. Which two conditions would require the use of a Transformer stage instead of a Copy stage? (Choose two.)

                      A) Directing selected output records down one output link rather than another.
                      B) Renaming one or more output columns.
                      C) Converting some input columns from integers to strings.
                      D) Concatenating data from multiple input columns.


                      4. What are the three features of Information Server that allow you to deploy DataStage objects? (Select three)

                      A) Information Server Manager
                      B) Designer Client Export
                      C) $APT_COPY_TRANSFORMER
                      D) dscc.exe
                      E) istool


                      5. Which three parallel job stages allow you to use partial schemas? (Select three)

                      A) Sequential File stage
                      B) Column Import stage
                      C) Peek stage
                      D) Dataset stage
                      E) External Source stage


                      Solutions:

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

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