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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. To better understand the data flowing through a job, it is desirable to have structural information about the datasets captured in the job log. Which environment variable can provide this information?

A) $OSH_PRINT_SCHEMAS
B) $APT_PM_PLAYER_MEMORY
C) $OSH_STDOUT_MSG
D) $APT_NO_PART_INSERTION

2. Which two properties can be set to read a fixed width sequential file in parallel? (Choose two.)

A) Set the Execution mode to "Parallel".
B) Set the "Read from Multiple Nodes" optional property to a value greater than 1.
C) Set the "Number of Readers Per Node" optional property to a value greater than 1.
D) Set Read Method to "File Pattern".

3. Your job runs slowly and does not scale beyond two nodes. It appears the data has been partitioned on the DoNotCall flag, which has accumulating totals based on this flag using a sort method.
Which technique would improve scalability and performance?

A) Add an additional column for partitioning to result in additional data partitions.
B) Increase the number of physical nodes available for partitioning.
C) Change the partitioning method to Round Robin; add a second Aggregator stage with Execution mode 'Sequential' and
D) Change the preserve partitioning option on the stage ahead of the aggregator to clear partitioning.

4. You set environment variable $APT_ORACLE_LOAD_OPTIONS=PTIONS(DIRECT=TRUE, PARALLEL=TRUE)?for loading index organized tables.You set environment variable $APT_ORACLE_LOAD_OPTIONS=?PTIONS(DIRECT=TRUE, PARALLEL=TRUE)?for loading index organized tables. Which statement is accurate regarding the resulting effect of this environment variable setting?

A) The Oracle load will run in parallel using simple direct path mode.
B) Oracle load will run in parallel and bypass DataStage Director.
C) Oracle load will fail when executed.
D) The Oracle database stage will run in parallel using conventional path mode.

5. 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_035_and_036_in your IBM DB2 column names.
C) Avoid using the strings_025_and_026_in your IBM DB2 column names.
D) Set environment variable $DS_ENABLE_RESERVED_NUM_CONVERT to true.

Solutions: