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

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

2. How must the input data set be organized for input into the Join stage? (Choose two.)

A) Unsorted
B) Key partitioned
C) Entire partitioned
D) Sorted by Join key
E) Hash partitioned

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

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

A) Grid environments must have named node pools for data processing.
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) Named node pools constraints will limit stages to be executed only on the nodes defined in the node pools.

5. Which two actions are available when editing a message handler? (Choose two.)

A) Demote to warning
B) Suppress from job log
C) Suppress from the project
D) Abort job
E) Demote to informational

Solutions: