About IBM A2090-421 VCE materials

Simple language

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Self-learning and self-evaluation functions

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IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

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

2. In the exhibit, a Funnel stage has two input links. Input 1 (Seq_File) comes from a SequentialFile with "Readers per Node" set to "2". Input 2 (Dataset) comes from a dataset created with 3 partitions. With the Funnel stage, the funnel type is set to "Sequence". The parallel configuration file contains three nodes.

How many instances of the Funnel stage run in parallel?

A) 3
B) 1
C) 6
D) 2

3. DataStage offers database connectivity through connectors, native parallel and plug-in stage types. Which two statements are correct? (Choose two.)

A) For maximum parallel performance, scalability, and features it is best to use the native parallel database stages.
B) ODBC API is a plug-in stage.
C) Next to the connector stage it is best to use the native parallel database stages.
D) The connector stage offers better functionality and performance and is the best to use.

4. What three types of links are supported by the Lookup Stage? (Select three)

A) A reference link
B) A single input link
C) Multiple Input Links
D) A single output link
E) Multiple reject links

5. Click the exhibit button.

You submit a job from DataStage Director and then log onto your DataStage Linux server to issue the command "ps -ef | grep ds" and receive the following screen: Which process is a player?