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IBM InfoSphere DataStage v9.1 Sample Questions:

1. Which stage classifies data rows from a single input into groups and computes totals?

A) Compare stage
B) Transformer stage
C) Modify stage
D) Aggregator stage

2. Your job is using the Sequential File stage as a source. Identify two stage property configurations that will allow you to accomplish parallel reads? (Choose two.)

A) Read Method property set to 'Specific File(s)' with only one file specified and the 'Readers Per Node' property value set to greater than 1.
B) Read Method property set to 'Specific File(s)' with more than one file specified and each file specified has the same format/column properties.
C) Read Method property is set to 'Parallel' with the Key property set to a Input column that has the file names.
D) Read Method property set to 'File Pattern' and the environment variable $APT_IMPORT_PATTERN_USES_FILESET is set to 'FALSE'.
E) Read Method property set to 'File Pattern' and the 'Readers per Node' property value set to greater than 1.

3. What two binding types are supported by Information Services Director (ISD) for a parallel job that is designed to be used as a service? (Choose two.)

A) SQL
B) SOAP
C) EJB
D) STREAMS
E) HDFS

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

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

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

Solutions: