IBM A2090-421 Exam Questions : Assessment: InfoSphere DataStage v8.5

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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. The Change Apply stage produces a change Data Set with a new column representing the code for the type of change. What are three change values identified by these code values? (Choose three.)

A) Edit
B) Final
C) Deleted
D) Copy
E) Remove Duplicates

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

3. You are assigned to correct a job from another developer. The job contains 20 stages sourcing data from two Data Sets and many sequential files. The annotation in the job indicates who wrote the job and when, not the objective of the job. All link and stage names use the default names. One of the output columns has an incorrect value which should have been obtained using a lookup. What could the original developer have done to make this task easier for maintenance purposes?

A) Named all stage and links the same.
B) Indicated all stage names within the job annotation.
C) Named all stages and links based on what they do.
D) Named all stage and links with column names and ideas.

4. You set environment variable $APT_ORACLE_LOAD_OPTIONS=PTIONS(DIRECT=TRUE, PARALLEL=TRUE)?for loading index organized tables.You set environment variable $APT_ORACLE_LOAD_OPTIONS=?PTIONS(DIRECT=TRUE, PARALLEL=TRUE)?for loading index organized tables. Which statement is accurate regarding the resulting effect of this environment variable setting?

A) The Oracle database stage will run in parallel using conventional path mode.
B) Oracle load will fail when executed.
C) Oracle load will run in parallel and bypass DataStage Director.
D) The Oracle load will run in parallel using simple direct path mode.

5. How are Shared Table definitions created from the DataStage Client?

A) Using the "Save" button on the columns tab on the Stage/Link editor
B) This cannot be done from the DataStage Client
C) Using the "Shared Table Creation Wizard" from the DataStage Client.
D) No need to, DataStage table definitions are automatically saved as shared metadata.
E) Using the "Save" button on the "Table Properties" panel

Solutions: