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

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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

Question 1

In a Transformer, which two of the following mappings can be handled by default type conversions. (Select two)

A. String input column mapped to integer output column.
B. Integer input column mapped to string output column.
C. String input column mapped to a data output column.
D. Date input column mapped to a string output column.
E. Integer input column mapped to raw output column.

Question 2

What are three valid join operations for the Join stage? (Choose three.)

A. Top outer join
B. Left outer join
C. Right outer join
D. Bottom inner join
E. Inner Join

Question 3

Which of the following describes a type two update in a Slowly Changing Dimensions (SCD) stage?

A. An update the retains the existing column value in an historical row and creates a new row with the new value.
B. An update that retains the existing column value in a list and adds the new value to the list.
C. An update that replaces the existing column value if a specified condition is satisfied.
D. An update that overwrites the existing column value.

Question 4

You are setting up the parallel engine configuration file. Which two statements are true about file system efficiency? (Select two)

A. In a clustered environment where NAS is used for a common storage, specify the internal disk for scratch disk.
B. Using multiple scratch spaces in a logical node improves performance.
C. Creating scratch disk space on an internal disk improves sort performance than NFS drive.
D. Specify a directory for the resource disk in the partition where the engine is installed.

Question 5

Which three environment variables are used for reporting on DataStage jobs? (Select three)

A. $APT_DUMP_SCORE
B. $APT_PM_STARTUP_CONCURRENCY
C. $APT_DISABLE_ROOT_FORKJOIN
D. $APT_PM_PLAYER_MEMORY
E. $OSH_PRINT_SCHEMAS

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