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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. Which option is required to identify a particular job player processes?Which option is required to identify a particular job? player processes?

A) Use the DataStage Director Job administration screen to display active player processes.
B) Set $APT_PM_SHOW_PIDS to true.
C) Log onto the server and issue the command "ps -ef | grep ds".
D) Set $APT_DUMP_SCORE to true.

2. You are using the Change Capture stage in your job design to identify changes made to the input link (before image) to obtain the results in the output link. This job will be using a multi-node configuration file when executed.
What are two requirements on the input link data for the Change Capture stage? (Select two)

A) Sorted
B) Key partitioned
C) Sequential mode
D) Merged links

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 second Sort stage. Add area as an additional sort key.
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 first Sort stage. Retain the existing sort keys in the second Sort stage.

4. Which Oracle data type conversion is correct?

A) Oracle data type NUMBER converts to DECIMAL(38, 0) in Oracle Enterprise stage.
B) Oracle data type NUMBER(6, 0) converts to INT32 in Oracle Enterprise.
C) Oracle data type NUMBER(15, 0) converts to INT32 in Oracle Enterprise stage.
D) Oracle data type RAW converts to RAW in Oracle Enterprise stage.

5. You have a dataset hash-partitioned and sorted on CustID. You need to create a Sequential File sorted on CustID from this dataset. Which technique is the most appropriate?

A) Use Copy stage.
B) Insert Sort stage before the final Sequential File stage and use Ordered collector for the Sequential File stage input link.
C) Use SortMerge collector for the Sequential File input link.
D) Insert Sort stage before the final Sequential File stage and use Round Robin collector for the Sequential File stage input link.

Solutions: