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

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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. 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) Sequential mode
B) Sorted
C) Merged links
D) Key partitioned

2. Which Information Server client application must be used to manage project-level roles for DataStage?

A) WebSphere Information Services Director
B) Web console for IBM Information Server
C) Director client
D) Designer client

3. Records in a source file must be aggregated for further processing. Which two conditions would require the use of a Transformer stage instead of or in addition to an Aggregator stage? (Choose two.)

A) Aggregation results outside of a certain range need to be flagged as abnormal.
B) The aggregation is a custom formula for your enterprise.
C) The data hasn't been sorted or grouped.
D) A global aggregation across all partitions is needed.

4. Which two statements are accurate regarding usage of database stages? (Choose two.)

A) Plug-in stages match columns by name.
B) DataStage provides native Oracle database stages.
C) Database stages cannot create tables and must be done externally.
D) Native database stages match columns by name.

5. External data conversions fall in two major types - automatic and manual. What are the three automatic conversions? (Select three)

A) Sequential File stage
B) SAS data
C) Relational data
D) Flat Text files
E) Modify operator

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