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IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. Which three environment variables are valid job score environment variables? (Select three)

A) APT JAVA SCORE
B) APT_LOW_SCORE
C) APT_SAVE_SCORE
D) APT_DUMP_SCORE
E) APT_THIN_SCORE

2. External data conversions fall in two major types - automatic and manual. What are the three automatic conversions? (Select three)

A) Relational data
B) Modify operator
C) SAS data
D) Sequential File stage
E) Flat Text files

3. 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_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".
D) 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".

4. Which two of the following derivations for an output column named OutCol can be used to generate a unique sequence of integers across multiple partitions?

A) 1 + @NUMPARTITIONS * @INROWNUM
B) @INROWNUM
C) NextSurrogateKey()
D) @PARTITIONNUM + @NUMPARTITIONS

5. Which two properties can be set to read a fixed width sequential file in parallel? (Choose two.)

A) Set the "Read from Multiple Nodes" optional property to a value greater than 1.
B) Set Read Method to "File Pattern".
C) Set the "Number of Readers Per Node" optional property to a value greater than 1.
D) Set the Execution mode to "Parallel".

Solutions: