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IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. 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, 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
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;
For LinkB Hash Partition on CustID;
For LinkC Same Partition;
For LinkD Hash Partition on CustID.

2. When using Runtime Column Propagation, which three stages require a schema file? (Select three)

A) Peek stage
B) DB2 Enterprise stage
C) Sequential File stage
D) Column Import stage
E) File Set stage

3. In which two operations can you create DataStage projects? (Choose two.)

A) When exporting and importing a DataStage project from DataStage Director.
B) During DataStage installation.
C) When creating a project in the IBM Information Server Console.
D) When adding new projects from DataStage Administrator.

4. A 100MB input dataset has even distribution across 400 unique key values.
When run with a 4-node configuration file, which two changes could improve sort performance in this scenario? (Select two)

A) Specify "Restrict Memory Usage" to 60MB on the Sort stage properties.
B) Convert all numeric fields to varchars.
C) Set $APT_TSORT_STRESS_BLOCKSIZE to 50M
D) Specify Round Robin partitioning on the input link to the Sort stage.
E) Alter the Sort stage properties to perform a stable sort.

5. When you run a parallel job, any error messages and warnings are written to the job log and can be viewed from the Director client. What two levels of message handlers are there? (Choose two.)

A) project level
B) job level
C) stage level
D) record level

Solutions: