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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. Which two statements are true regarding access to a MQ queue? (Choose two.)

A) MQ stage connects to a queue manager in Client mode only.
B) MQ plugin stage can be used to read and write messages from a remote MQ message queue.
C) MQ connector stage is capable of connecting to Queue manager in both Server and Client mode.
D) MQ stage and MQ connector stages support destructive reads.

2. A customer is complaining of poor performance from the job shown in the exhibit, which aggregates and joins on ZIP code. Currently all partitioning is set to "Auto" and sort/partition insertion is allowed.

What would give the best performance improvement for the job?

A) Hash partition and sort on ZIP code prior to the Copy stage, and use same partitioning on the Aggregator and Join stages.
B) Hash partition and sort on ZIP code on the input links to the Aggregator and Join stages.
C) Hash partition and sort on ZIP code prior to the Copy stage and use entire partitioning on the output of the Aggregator stage.
D) Use same partitioning on all input links in the job; create the input data set by hash-partitioning its input on ZIP code.

3. Your job runs slowly and does not scale beyond two nodes. It appears the data has been partitioned on the DoNotCall flag, which has accumulating totals based on this flag using a sort method.
Which technique would improve scalability and performance?

A) Change the partitioning method to Round Robin; add a second Aggregator stage with Execution mode 'Sequential' and
B) Change the preserve partitioning option on the stage ahead of the aggregator to clear partitioning.
C) Add an additional column for partitioning to result in additional data partitions.
D) Increase the number of physical nodes available for partitioning.

4. The DB2 and Oracle Enterprise stages support logged and non-logged DBMS table operations. What is the non-logged operation that is supported by the DB2 and Oracle Enterprise stages?

A) Load
B) Update
C) Delete
D) Insert

5. You have finished changes to many Jobs and Shared containers. You must export all of your changes and integrate them into a test project with other objects. What are two ways to select the objects you changed for the export? (Select two)

A) Select a folder in your repository tree, right click and choose "Objects that I last modified".
B) Using the advanced find dialog, specify in the last modified panel. the date range of the jobs and appropriate user name.
C) Sort the jobs by timestamp.
D) Use Multiple Job Compile to locate objects that need to be compiled.

Solutions: