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IBM C2090-418 Exam Syllabus Topics:

IBM Websphere Datastage V.8.0 Sample Questions:

1. Which stage does not require sorted input?

A) Lookup stage
B) Join stage
C) Remove Duplicates stage
D) Merge stage

2. In your DB2 database you have column names that use characters # and $. Which two steps should be completed to allow DataStage to convert these characters into internal format and back as necessary? (Choose two.)

A) Avoid using the strings __025__ and __026__ in your IBM DB2 column names.
B) Set environment variable $DS_ENABLE_RESERVED_CHAR_CONVERT to true.
C) Set environment variable $DS_ENABLE_RESERVED_NUM_CONVERT to true.
D) Avoid using the strings __035__ and __036__ in your IBM DB2 column names.

3. You have a parallel job that does not scale beyond two nodes. After investigation you find that the data has been partitioned on a DoNotCall flag, which has only "Y" or "N" values, and you have an Aggregator stage that is accumulating totals based on this flag using a sort method. Which two techniques could you use to allow the job to scale? (Choose two.)

A) Change the preserve partitioning option on the stage ahead of the aggregator to clear partitioning.
B) Change the aggregation method to hash to eliminate the blocking sort operation.
C) Add an additional column for partitioning to result in additional data partitions.
D) Change the partitioning method to Round Robin; add a second Aggregator stage, running sequentially, that re-aggregates based on the DoNotCall flag.

4. In a job using Sequential File stage to write a sequential file, the ContactName column is nullable, but the "Null field value" property is left unspecified. The ContactName column has a Char(50) data type. What will happen if NULL is written to the ContactName column?

A) The job will abort.
B) The column will be padded with the character specified by the $APT_STRING_PADCHAR character.
C) The row containing the NULL will be rejected.
D) The empty string ("") will be written to the ContactName column.

5. Click the Exhibit button.
In the exhibit, what is "conductor"?

A) A node name
B) A resource pool
C) A resource
D) A node pool

Solutions: