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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. Your job runs slowly and does not scale beyond two nodes. It appears the data has been partitioned on the DoNotCall flag, which has accumulating totals based on this flag using a sort method.
Which technique would improve scalability and performance?

A) Change the preserve partitioning option on the stage ahead of the aggregator to clear partitioning.
B) Add an additional column for partitioning to result in additional data partitions.
C) Increase the number of physical nodes available for partitioning.
D) Change the partitioning method to Round Robin; add a second Aggregator stage with Execution mode 'Sequential' and

2. You have a DataStage job on SMP environment. It contains an input sequential file, a Modify stage, followed by a Transformer stage, and an output Sequential File stage. The job is run with three nodes. The engine uses all default settings. How many processes will this job create?

A) 19
B) 9
C) 12
D) 16

3. In the job fragment shown in the exhibit, there are two Sort stages: the first (Sort1) sorts the data by state, the second (Sort2) sorts the data by state and area, No repartitioning occurs between the stages.
You have been asked to reduce the number of sorts to improve the performance of the job.

Which two ways might be used to accomplish this without changing how the job functions? (Select two)

A) Remove the first Sort stage. Retain the existing sort keys in the second Sort stage.
B) In the second Sort stage change the Sort Mode property of the state column to "Don't sort, previously sorted.".
C) In the second Sort stage change the Sort Mode property of the area column to "Don't sort, previously sorted.".
D) Remove the second Sort stage. Add area as an additional sort key.

4. You have finished changes to many Jobs and Shared containers. You must export all of your changes and integrate them into a test project with other objects. What are two ways to select the objects you changed for the export? (Select two)

A) Use Multiple Job Compile to locate objects that need to be compiled.
B) Sort the jobs by timestamp.
C) Select a folder in your repository tree, right click and choose "Objects that I last modified".
D) Using the advanced find dialog, specify in the last modified panel. the date range of the jobs and appropriate user name.

5. Which three of the following actions are available when editing a message handler? (Select three)

A) Demote to informational
B) Promote to warning
C) Demote to warning
D) Abort Job
E) Suppress from job log

Solutions: