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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. How is Runtime Column Propagation (RCP) enabled for use in DataStage Jobs?

A) Use RCP definition wizard to initialize RCP for project use.
B) Set the APT_ENABLE_RCP environment variable to TRUE.
C) RCP is by default available for all DataStage Projects.
D) Use the DataStage Administrator to enable RCP for the project.
E) Use the Info Server web console to enable RCP

2. Which three attributes are found for each segment in a Data Set descriptor file? (Select three)

A) Flag marking segment as valid or invalid.
B) Schema of Data Set.
C) Copy of the configuration file used when segment was created.
D) Statistical information such as number of records in the segment and number of bytes.
E) Path names of all data files on all processing nodes.

3. What are two advantages of using Runtime Column Propagation (RCP)? (Choose two.)

A) Columns not specifically used in the flow are propagated as if they were.
B) Only columns used in the data flow need to be defined.
C) Sequential files don't require schema files when using RCP.
D) RCP is not a feature of DataStage.
E) Only columns that are defined as VarChar need RCP enabled.

4. A job design consists of an input SequentialFile stage, followed by a Peek stage, a Transformer stage, a Sort stage and finally an output Dataset stage. The job executes on an SMP system with a configuration file defined with 4 nodes.
The environment variable $APT_DISABLE_COMBINATION is set to "True". How many processes will this job create?

A) 19
B) 21
C) 12
D) 17

5. Click the Exhibit button.

These three Sequential Files shown in the exhibit need to be joined. Join_1 is on Columns CustID and OrderID. Join_2 is on CustID and LocationID. What is the most efficient hash partitioning strategy for each link?

A) For LinkA Hash Partition on OrderID and CustID; For LinkB Hash Partition on OrderID and CustID; For LinkC Hash Partition on LocationID and CustID; For LinkD Hash Partition on LocationID and CustID.
B) For LinkA Hash Partition on CustID, OrderID and LocationID; For LinkB Hash Partition on CustID, OrderID and LocationID; For LinkC Hash Partition on CustID, OrderID and LocationID; For LinkD Hash Partition on CustID, OrderID and LocationI
C) For LinkA Hash Partition on CustID;
For LinkB Hash Partition on CustID;
For LinkC Same Partition;
For LinkD Hash Partition on CustID.
D) For LinkA Hash Partition on CustID and OrderID; For LinkB Hash Partition on CustID and OrderID; For LinkC Hash Partition on CustID and LocationID; For LinkD Hash Partition on CustID and LocationID.

Solutions: