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IBM InfoSphere DataStage v8.5 Sample Questions:

1. You have been given operational requirements to introduce data recovery to one of your parallel job designs. Additionally, you have been told that you are to use flat files as your intermediate data structure. Which two tasks will accomplish these objectives? (Choose two.)

A) Break up the design by splitting it into at least two parallel jobs.
B) Use the Sequential stage to export and import data between jobs.
C) Use the Hash File stage to write and read data between parallel jobs.
D) Enable checkpoint restartability in each of your parallel stages.

2. Which two statements are true about the use of named node pools? (Choose two.)

A) Named node pools constraints will limit stages to be executed only on the nodes defined in the node pools.
B) Clustered environments must have named node pools for data processing.
C) Named node pools can allow separation of buffering from sorting disks.
D) Using appropriately named node pools forces DataStage to use named pipes between stages.

3. Which three of the following actions are available when editing a message handler? (Select three)

A) Suppress from job log
B) Demote to informational
C) Abort Job
D) Promote to warning
E) Demote to warning

4. 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) 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.
B) Select all source rows using a DB2 API stage. Aggregate using a Sort Aggregator.
C) 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.
D) Using custom SQL with AVG functions and a DISTINCT clause, select all source rows using a DB2 Enterprise stage.

5. What are three valid join operations for the Join stage? (Choose three.)

A) Top outer join
B) Bottom inner join
C) Right outer join
D) Left outer join
E) Inner Join

Solutions: