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

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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

Question 1

A job reads from a sequential file using a SequentialFile stage with option "number of readers" set to 2. This data goes to a Transformer stage and then is written to a dataset using the DataSet stage. The default configuration file has three nodes. The environment variable $APT_DISABLE_COMBINATION is set to "True" and partitioning is set to "Auto". How many processes will be created?

A. 12
B. 7
C. 5
D. 9

Question 2

Which two statements are correct when using the Oracle Enterprise stage? (Choose two.)

A. $APT_ORCHHOME/bin must appear before $ORACLE_HOME/bin in the $PATH.
B. Add $ORACLE_HOME/bin to the $PATH and $ORACLE_HOME/lib to the $LIBPATH, $LD_LIBRARY_PATH, or $SHLIB_PATH.
C. DataStage Designer requires connectivity to the Oracle database during job development.
D. Define variable $TNS_ADMIN to point to the tnsnames.ora file location.

Question 3

Which environment variable determines where the temporary scores are stored?

A. APT_SAVE_SCORE
B. APT_HIGH_SCORE
C. APT_JOB_MON
D. APT_DUMP_SCORE

Question 4

How is DataStage Table Metadata shared among DataStage projects?

A. Export DataStage Table Definitions from one project and importing them into another project.
B. Use the "Shared Table Creation Wizard" to create a copy of the table in the shared repository.
C. Use the Import/Export Manager to move the DataStage Table Definition to the projects where it is needed.
D. Import another copy of the table metadata into the project where it is required.
E. DataStage Tables cannot be shared between projects.

Question 5

Which of the following describes what happens when Runtime Column Propagation is enabled?

A. An input column value flows into a target column only if it matches it by name.
B. An input column value flows into a target column based on its position in a Schema file.
C. An input column value flows into a target column only if it is explicitly mapped to it.
D. An input column value flows into a target column based on its position in the input row. For example, first column in the input row goes into the first target column.

Solutions: