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IBM InfoSphere DataStage v9.1 Sample Questions:

1. You have a parallel job that based on operational recoverability requirements needs to be broken up into two separate parallel jobs. You have decided to use the Data Set stage to support this job design change. What two characteristics of Data Sets make them a good design consideration in your jobs design change? (Choose two.)

A) They automatically convert data types.
B) They persist parallelism into a temporary repository table.
C) They sort the data in a staging area.
D) They use the same data types as the parallel framework.
E) They persist the parallelism of the job creating them.

2. Which statement is correct about the Data Rules stage?

A) As a best practice, you should create and publish new rules from the Data Rules stage.
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) The Data Rules stage works with rule definitions only; not executable rules.
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).

3. What are the valid join operations for the Join stage? (Choose two.)

A) Right outer join
B) Where join
C) Bottom inner join
D) Top outer join
E) Inner join

4. You are asked by your customer to collect partition level runtime metadata for DataStage parallel jobs. You must collect this data after each job completes. What two options allow you to automatically save row counts and CPU time for each instance of an operator? (Choose two.)

A) Click the Performance Analysis icon in the toolbar to open the Performance Analyzer utility.
B) Enable the job property "Record job performance data".
C) $APT_PERFORMANCE_DATA
D) Open up the job in Metadata Workbench and select the "Data Lineage" option.
E) $APT_CPU_ROWCOUNT

5. Configuring the weighting column of an Aggregator stage affects which two options. (Choose two.)

A) Maximum Value
B) Uncorrected Sum of Squares
C) Sum
D) Coefficient of Variation
E) Average of Weights

Solutions: