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IBM InfoSphere DataStage v8.5 Sample Questions:

1. Your job uses the MQ connector stage to read messages from an MQ queue. The job should retrieve the message ID into the MessageID field and parse the payload into two fields: Name is to get the first ten characters, Description is to get the remaining characters.
What will accomplish this?

A) First column is MessageID; select the WSMQ.MSGID data element for the Message ID field; second column is Name as Binary 10; third column is Description as VarBinary 200.
B) First column is MessageID as Binary 24; second column is Name as Binary 10; select WSMG. MSPAYLOAD data element; third column is Description as VarBinary 200; select WSMG.MSPAYLOAD data element.
C) First column is MessageID; select the WSMQ.MSGID data element for the Message ID field; column is Description as VarBinary 200; third column is Name as Binary 10.
D) First column is MessageID; select the WSMQ.MSGID data element for the Message ID field; second column is Name; select WSMG.MSPAYLOAD data element; third column is Description; select WSMG.MSPAYLOAD data element.

2. You have a dataset hash-partitioned and sorted on CustID. You need to create a Sequential File sorted on CustID from this dataset. Which technique is the most appropriate?

A) Insert Sort stage before the final Sequential File stage and use Round Robin collector for the Sequential File stage input link.
B) Use Copy stage.
C) Insert Sort stage before the final Sequential File stage and use Ordered collector for the Sequential File stage input link.
D) Use SortMerge collector for the Sequential File input link.

3. 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) Specify Round Robin partitioning on the input link to the Sort stage.
C) Set $APT_TSORT_STRESS_BLOCKSIZE to 50M
D) Alter the Sort stage properties to perform a stable sort.
E) Convert all numeric fields to varchars.

4. Which three statements are true about stage variables? (Select three)

A) Stage variables are executed before loop variables.
B) Stage variables are executed after constraints but before derivations.
C) A derivation for a stage variable can reference stage variables that are later in the execution order.
D) Stage variables cannot contain NULL values.
E) Stage variables retain their values between rows in the stage.

5. 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.".

Solutions: