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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. What stage allows for more than one reject link?

A) Peek stage
B) Join stage
C) Funnel stage
D) Merge stage
E) Lookup stage

2. You are running a DataStage job using a 2-node configuration file. How can a fixed-width single sequential file be read in parallel? (Choose two.)

A) Specify a node constraint for the SequentialFile stage.
B) Set the "Read From Multiple Nodes" optional property to a value greater than 1.
C) Set the "Number of Readers per Node" optional property to a value greater than 1.
D) Use an external Source stage.
E) Set the Execution Mode to the SequentialFile stage to "Parallel".

3. What are the three aggregation types can be set in the Aggregator stage? (Select three)

A) Calculate
B) Count Rows
C) Recalculate
D) Count Values
E) Sum Rows

4. Which requirement must be met to read from a database in parallel using the ODBC connector?

A) ODBC connector always reads in parallel.
B) Configure environment variable $APT_PARTITION_COUNT.
C) Configure environment variable $APT_MAX_TRANSPORT_BLOCK_SIZE.
D) Set the Enable partitioning property to Yes.

5. The derivation for a stage variable is: Upcase(input_column1) : ' ' : Upcase(input_column2). Suppose that input_column1 contains a NULL value. Which behavior is expected?

A) The input row is either dropped or rejected depending on whether the Transformer has a reject link.
B) The job aborts.
C) The target stage variable is populated with spaces or zeros depending on the stage variable data type.
D) NULL is written to the target stage variable.

Solutions: