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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. You set environment variable $APT_ORACLE_LOAD_OPTIONS=PTIONS(DIRECT=TRUE, PARALLEL=TRUE)?for loading index organized tables.You set environment variable $APT_ORACLE_LOAD_OPTIONS=?PTIONS(DIRECT=TRUE, PARALLEL=TRUE)?for loading index organized tables. Which statement is accurate regarding the resulting effect of this environment variable setting?

A) Oracle load will fail when executed.
B) Oracle load will run in parallel and bypass DataStage Director.
C) The Oracle database stage will run in parallel using conventional path mode.
D) The Oracle load will run in parallel using simple direct path mode.

2. You are connected to a domain and must configure it for Source Code Integration.
What are the two things that must be done to associate your DataStage repository with a source control system? (Select two)

A) From Designer Client choose Team Share Project.
B) From Information Server Manager choose Team Import.
C) Create a source code control project with the same name as the domain. Choose Integrate Source Control.
D) From Information Server Manager choose Team Share Project.

3. Using a DB2 for z/OS source database, a 200 million row source table with 30 million distinct values must be aggregated to calculate the average value of two column attributes. What would provide optimal performance while satisfying the business requirements?

A) Using custom SQL with an ORDER BY clause based on key columns, select all source rows using the DB2 API stage. Aggregate using a Hash Aggregator.
B) Select all source rows using a DB2 API stage. Aggregate using a Sort Aggregator.
C) Using custom SQL with AVG functions and a DISTINCT clause, select all source rows using a DB2 Enterprise stage.
D) Select all source rows using a DB2 Enterprise stage, use a parallel Sort stage with the specified sort keys, calculate the average values using a parallel Transformer with stage variables and output link constraints.

4. 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 CustID;
For LinkB Hash Partition on CustID;
For LinkC Same Partition;
For LinkD Hash Partition on CustID.
B) 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.
C) 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.
D) 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

5. Click on the Exhibit button.

Which environment variable would provide this information?

A) APT_SHOW_COMPONENT_CALLS
B) APT_PM_PLAYER_TIMING
C) APT_STATUS
D) APT_DEBUG_PARTITION

Solutions: