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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

Question 1

In which two situations would you use the Web Services Client stage? (Choose two.)

A. You need the Web service to act as either a data source or a data target during an operation.
B. You want to deploy a service.
C. You do not need both input and output links in a single web service operation.
D. You need to create a WSDL.

Question 2

Which Oracle Enterprise stage read property can be set using -dboptions to tune job performance?

A. transactsize
B. arraysize
C. partitionsize
D. memsize

Question 3

Input rows to a Transformer contain a product name field and a field with a list of colors the product can be ordered with. The colors are separated by the pipe character (|). Here is an example of an input row: "Shirt"| ....| "Red, Blue, Black"|... For each input row, you want to output multiple output rows, one for each color in the list. For the above example input row, three rows are to be output, one per color: "Shirt" ... "Red", "Shirt" ... "Blue", "Shirt" ... "Black".
Which three operations will you need to accomplish this? (Choose three.)

A. Use the @ITERATION variable to determine which color in the ColorList field to extract using the Field function.
B. Use the LastRowInGroup() function to determine when the last color in the color list has been processed.
C. Use the SaveInputRecord() to save the input row for processing in the loop. Use the GetInputRecord() to extract the row for each iteration of the loop.
D. Specify the following loop condition: @ITERATION <= n, where n is a stage variable initialized with number of loop iterations.
E. Use the Count() function over the ColorList field to determine the number of loop iterations.

Question 4

In the exhibit, the Aggregator stage aggregates over CustomerID. The Join stage joins by CustomerID. When the score is created, DataStage will insert hash partitioners and tsort operators to ensure the correct results.

Which two choices will eliminate sort operators from being inserted at run-time? (Select two)

A. Add a Sort stage before the Copy stage and specify Same partitioners for the links going into the Aggregator and Join stages.
B. Add Sort stages in front of the Join stage and specify the Same partitioner for the links going into the Join. Set the $APT_NO_SORT_INSERTION environment variable to "True".
C. Add a Sort stage before the Copy stage and specify Auto partitioned for the links going into the Aggregator and Join stages.
D. Add a Sort stage before the Aggregator stage and specify the Same partitioner for the link going into the Aggregator Set the $APT_SORTJNSERTION_CHECK_ONLY environment variable to "True".

Question 5

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. 2
D. 6

Solutions: