IBM C2090-303 : IBM InfoSphere DataStage v9.1

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IBM C2090-303 Exam Syllabus Topics:

IBM InfoSphere DataStage v9.1 Sample Questions:

Question #1
In a Transformer expression for a stage variable, there is a nullable input column. Assume the legacy NULL processing option is turned off. What happens when a row is processed that contains NULL in that input column?

A. The job aborts.
B. The value written to the stage variable is undetermined.
C. The row is rejected.
D. NULL is written to the stage variable.

Question #2
A job validates account numbers with a reference file using a Join stage, which is hash partitioned by account number. Runtime monitoring reveals that some partitions process many more rows than others. Assuming adequate hardware resources, which action can be used to improve the performance of the job?

A. Change the number of nodes in the configuration file.
B. Add a Sort stage in front of the Join stage. Sort by account number.
C. Use Round Robin partitioning on the stream and Entire partitioning on the reference.
D. Replace the Join with a Merge stage.

Question #3
Which statement is correct about the Data Rules stage?

A. The Data Rules stage works with rule definitions only; not executable rules.
B. If you have Rule Creator role in InfoSphere Information Analyzer, you can create and publish rule definitions and rule set definitions directly from the stage itself.
C. As a best practice, you should create and publish new rules from the Data Rules stage.
D. When a job that uses the Data Rules stage runs, the output of the stage is passed to the downstream stages and results are stored in the Analysis Results database (IADB).

Question #4
Which two statements about using a Load write method in an Oracle Connector stage to tables that have indexes on them are true? (Choose two.)

A. Set the environment variable APT_ORACLE_LOAD_OPTIONS to "OPTIONS (DIRECT=TRUE, PARALLEL=FALSE)".
B. The Load Write method uses "Rebuild" mode with no logging automatically.
C. Set the Index mode property to "Bypass".
D. The Load Write method uses the Parallel Direct Path load method.
E. Set the Upsert mode property to "Index".

Question #5
Identify two different types of custom stages you can create to extend the Parallel job syntax? (Choose two.)

A. Custom stage
B. Wrapped stage
C. Basic stage
D. Group stage
E. Input stage

Solutions: