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IBM InfoSphere DataStage v8.5 Sample Questions:

1. In your DB2 database you have column names that use characters # and $. Which two steps should be completed to allow DataStage to convert these characters into internal format and back as necessary? (Select two)

A) Set environment variable $DS_ENABLE_RESERVED_CHAR_CONVERT to true.
B) Set environment variable $DS_ENABLE_RESERVED_NUM_CONVERT to true.
C) Avoid using the strings_035_and_036_in your IBM DB2 column names.
D) Avoid using the strings_025_and_026_in your IBM DB2 column names.

2. 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) Increase the number of physical nodes available for partitioning.
D) Add an additional column for partitioning to result in additional data partitions.

3. Your job sequence must be restartable. It runs Job1, Job2, and Job3 serially. It has been compiled with "Add checkpoints so sequence is restartable". Job1 must execute every run even after a failure. Which two properties must be selected to ensure that Job1 is run each time, even after a failure? (Choose two.)

A) Set trigger on the Job1 Activity stage to "Unconditional".
B) Use the Nested Condition Activity with a trigger leading to Job1; set the trigger expression type to "Unconditional".
C) In the Job1 Activity stage set the Execution action to "Reset if required, then run.".
D) Set the Job1 Activity stage to "Do not checkpoint run.".

4. You would like to pass values into parameters that will be used in a variety of downstream activity stages within a job sequence. What are three valid ways to do this? (Choose three.)

A) Use environment variables.
B) Use local parameters.
C) Use the UserVariablesActivity Stage to populate the local parameters from an outside source such as a file.
D) Check the "Propagate Parameters" checkbox in the Sequence Job properties.
E) Place a parameter set stage on the job sequence.

5. Click on the Exhibit button.

Which environment variable would provide this information?

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

Solutions:

Question # 1 Answer: A,C

Question # 2 Answer: C,D

Question # 3 Answer: C,D

Question # 4 Answer: A,B,C

Question # 5 Answer: B