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IBM InfoSphere DataStage v9.1 Sample Questions:

1. Rows of data going into a Transformer stage are sorted and hash partitioned by the Input.Product column. Using stage variables, how can you determine when a new row is the first of a new group of Product rows?

A) Create a stage variable named sv_Product and follow it by a second stage variable named
sv_IsNewProduct. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product <> sv_Product THEN "YES"
ELSE "NO".
B) Create a stage variable named sv_IsNewProduct and follow it by a second stage variable
named sv_Product. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product <> sv_Product THEN "YES"
ELSE "NO".
C) Create a stage variable named sv_Product and follow it by a second stage variable named
sv_IsNewProduct. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product = sv_Product THEN "YES"
ELSE "NO".
D) Create a stage variable named sv_IsNewProduct and follow it by a second stage variable
named sv_Product. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product = sv_Product THEN "YES"
ELSE "NO".

2. You are using the Change Capture stage in your job design to identify changes made to the input link (before image) to obtain the results in the output link. This job will be using a multi-node configuration file when executed. What are two requirements on the input link data for the Change Capture stage? (Choose two.)

A) merged links
B) key partitioned
C) parallel mode
D) sequential mode
E) sorted

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

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

4. Which two commands start a DataStage job named procRows in a project named DSProject. It also passes the value 200 to the numRows parameter. (Choose two.)

A) dsjob -run -mode validate -param numRows=200 DSProject procRows
B) dsjob -run -queue HighPriority -param numRows=200 DSProject procRows
C) dsjob -run -mode normal -param numRows=200 DSProject procRows
D) dsjob -run -mode normal -paramfile numRows=200 DSProject procRows
E) dsjob -run -paramfile numRows=200 DSProject procRows

5. Which two statements are true about Data Sets? (Choose two.)

A) Data Sets represent persistent data.
B) Data Sets require import/export conversions.
C) Data Sets preserve partitioning.
D) Data sets contain ASCII data.
E) Data Sets require repartitioning.

Solutions: