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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

Question 1

The given job processes large volumes of data using default partitioning, with sort/partition insertion enabled. Both source Data Sets are partitioned and sorted on the merge key. Assuming that the business logic allows all of the following actions, which design change would improve the performance of this job?

A. Before each input to the Merge stage, insert a Sort stage with "Don't Group, Previously Grouped" set on the merge key. Specify SAME partitioning on all inputs.
B. Set the "Preserve Partitioning" option on both Data Sets and replace the Merge stage with a Sort Funnel stage.
C. Use the Data Set Management Utility to combine both input Data Sets into a single source Data Set.
D. Set the buffer mode to "no buffer" on the output links of both Data Sets.

Question 2

Which two features of Data Sets make them suitable for job restart points? (Choose two.)

A. They are indexed to improve access.
B. They are persistent.
C. They are compressed to minimize storage space.
D. They use the same data types as the parallel framework.

Question 3

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

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

Question 4

You have a job that reads in Sequential File followed by a Transformer stage. When you run this job, which partitioning method will be used by default?

A. Same
B. Round Robin
C. Random
D. Hash

Question 5

Your job is using the DB2 Enterprise stage as a target. In this job you are inserting data into a single existing table on a remote database. You are using Run-Time Column Propagation (RCP) on all of the links.
Which two job design configuration actions would you consider to effectively use RCP? (Select two)

A. Use DB2 partitioning properties on the input link to the DB2 Enterprise stage to control column layout in partitions.
B. In the DB2 Enterprise stage use Connection properties to manage column mappings.
C. In the DB2 Enterprise stage set the option named "Silently Drop Columns Not in Table" to "True".
D. Use a Modify stage prior to the DB2 Enterprise stage in order to drop the columns not found in the table.

Solutions: