IBM InfoSphere DataStage v8.5 : C2090-421

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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

Question 1

You are asked by management to document all jobs written to make future maintenance easier. Which two statements are true about annotations? (Choose two.)

A. The Description Annotation stage can be added several times at different locations to identify business logic.
B. The full job description can be identified within the Description Annotation stage.
C. The Description Annotation stage contains both the short and full descriptions for the job.
D. The background for the Description Annotation stage can be changed for each unique stage.

Question 2

DataStage offers database connectivity through connectors, native parallel and plug-in stage types. Which two statements are correct? (Choose two.)

A. Next to the connector stage it is best to use the native parallel database stages.
B. The connector stage offers better functionality and performance and is the best to use.
C. ODBC API is a plug-in stage.
D. For maximum parallel performance, scalability, and features it is best to use the native parallel database stages.

Question 3

What are two fundamental functions of the Information Server Source Code Integration based on the Eclipse Team framework? (Choose two.)

A. Send to Source Code Control Workspace
B. Commit Changes
C. Rollback Changes
D. Replace from Source Code Control Workspace

Question 4

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

Question 5

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 can allow separation of buffering from sorting disks.
C. Using appropriately named node pools forces DataStage to use named pipes between stages.
D. Clustered environments must have named node pools for data processing.

Solutions: