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IBM Assessment: IBM InfoSphere DataStage v9.1 Assessment Sample Questions:

1. What is used to configure the DataStage QualityStage Operations Console?

A) Information Server Web Console
B) The DSODBCConfig.cfg file
C) DataStage Administrator
D) The DSAppWatcher.sh script

2. Which two statements are true about the use of named node pools? (Choose two.)

A) Named node pools constraints will limit stages to be executed only on the nodes defined in the node pools.
B) Named node pools limit the total number of partitions that can be specified in the configuration file.
C) When named node pools are used, DataStage uses named pipes between stages.
D) Named node pools can allow separation of buffering from sorting disks.
E) Grid environments must have named node pools for data processing.

3. Which Oracle data type conversion is correct?

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

4. A job design consists of an input Row Generator stage, a Filter stage, followed by a Transformer stage and an output Sequential File stage. The job is run on an SMP machine with a configuration file defined with three nodes. The $APT_DISABLE_COMBINATION variable is set to True. How many player processes will this job generate?

A) 12
B) 8
C) 10
D) 16

5. A DataStage job uses an Inner Join to combine data from two source parallel datasets that were written to disk in sort order based on the join key columns. Which two methods could be used to dramatically improve performance of this job? (Choose two.)

A) Disable job monitoring.
B) Set the environment variable $APT_SORT_INSERTION_CHECK_ONLY.
C) Unset the Preserve Partitioning flag on the output of each parallel dataset.
D) Explicitly specify hash partitioning and sorting on each input to the Join stage.
E) Add a parallel sort stage before each Join input, specifying the "Don't Sort, Previously Grouped" sort key mode for each key.

Solutions: