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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. In which two situations is it appropriate to use a Sparse Lookup? (Choose two.)

A) When reference data is significantly larger than the streaming data (100:1).
B) When accessing DB2 data using the DB2 API stage.
C) When invoking a stored procedure within a database per row in the streaming link.
D) When the output of the Lookup stage needs to be hashed partitioned.

2. Which three methods can be used to import metadata from a Web Services Description Language (WSDL) document? (Choose three.)

A) XML Table Definitions
B) Orchestrate Schema Definitions
C) Web Services WSDL Definitions
D) Job Stage Column tab properties entered using "Load" feature
E) Web Service Function Definitions

3. The result of a performance review for one of your job designs indicated this job needs to be split into two separate jobs. You also have been given the requirement to ensure you maintain parallelism (no re-partitioning) between these two new jobs.
Which single stage should you consider to accomplish maintaining parallelism and not introduce re-partitioning between these related jobs?

A) Sequential File stage
B) Named Pipe stage
C) Data Set stage
D) Copy stage

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 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".
C) 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".
D) Add a Sort stage before the Copy stage and specify Auto partitioned for the links going into the Aggregator and Join stages.

5. Which two property areas must be configured when using the ODBC connector stage as a target in your job design? (Choose two.)

A) Specify properties for the input link.
B) Specify the remote server property.
C) Define the connection properties to an ODBC data source.
D) Define columns for the output link.

Solutions: