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

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

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

2. Two new columns have been deleted from a sequential file that a number of DataStage jobs write to. You have imported a table definition for the changed file. How can you determine what jobs might be affected by this change?

A) Select the original table definition, right-click, then click on the Where used command.
B) Select the new table definition, right-click, click on the Compare against command, then select original table definition.
C) Select the new table definition, right-click, then click on the Where used command.
D) Select the original table definition, right-click, then click on the Find dependencies command.

3. You are experiencing performance issues for a given job. You are assigned the task of understanding what is happening at run time for that job. What step should you take to understand the job performance issues?

A) Run the job with $APT_DUMP_SCORE set to true.
B) Replace Transformer stages with custom operators.
C) Replace Join stages by Lookup stages.
D) Run the job with $APT_TRACE_RUN set to true.

4. A 100MB input dataset has even distribution across 400 unique key values. When you run with a 4-node configuration file, which two changes could improve sort performance in this scenario? (Choose two.)

A) Convert all numeric fields to varchars.
B) Specify Round Robin partitioning on the input link to the Sort stage.
C) Specify "Restrict Memory Usage" to 60MB on the Sort stage properties.
D) Set $APT_TSORT_STRESS_BLOCKSIZE to 50M
E) Alter the Sort stage properties to perform a stable sort.

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

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

Solutions: