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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. Which two statements are true about the use of named node pools? (Choose two.)

A) Clustered environments must have named node pools for data processing.
B) Named node pools constraints will limit stages to be executed only on the nodes defined in the node pools.
C) Using appropriately named node pools forces DataStage to use named pipes between stages.
D) Named node pools can allow separation of buffering from sorting disks.

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

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

3. Which three statements are true about stage variables? (Select three)

A) Stage variables cannot contain NULL values.
B) A derivation for a stage variable can reference stage variables that are later in the execution order.
C) Stage variables are executed before loop variables.
D) Stage variables are executed after constraints but before derivations.
E) Stage variables retain their values between rows in the stage.

4. A client needs to process a flat file where a set of values in the import data columns should be treated as Null. What is the best way to handle multiple Null values using a Sequential File stage?

A) On the Output Link format tab, specify the null values in double quotes separated by a comma in the Null field value property.
B) On the Input Link format tab, specify the null values in double quotes separated by a comma in the Null field value property.
C) On the Input Link format tab, specify a separator character in the dependent Null field value separator property and then use this separator to delimit the null values in the Null field value property. Click here to input option.
D) On the Output Link format tab, specify a separator character in the dependent Null field value separator property and then use this separator to delimit the null values in the Null field value property.

5. Which two statements are correct when referring to an Aggregator Stage? (Choose two.)

A) Use Hash method with a large number of distinct key-column values
B) Use Sort method with a large number of distinct key-column values
C) Use Sort method for a limited number of distinct key values
D) Use Hash method for a limited number of distinct key values

Solutions: