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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

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

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

2. 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_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".
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_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".

3. What are three valid join operations for the Join stage? (Choose three.)

A) Inner Join
B) Left outer join
C) Top outer join
D) Right outer join
E) Bottom inner join

4. You are processing groups of rows in a Transformer. The first row in each group contains "1" in the Flag column and "0" in the remaining rows of the group. At the end of each group you want to sum and output the QTY column values. Which three techniques will enable you to retrieve the sum of the last group? (Choose three.)

A) Output a running total for each group for each row. Follow the Transformer stage by an Aggregator stage. Take the MAX of the QTY column for each group.
B) Output the sum that you generated up to the previous row each time you process a row with a "1" in the Flag column. Use the LastRow() function to determine when the last group is done.
C) Within each group sort the Flag column in ascending order. Output the sum each time you process the row with a "1" in the Flag column.
D) Output the sum that you generated each time you process a row for which the LastRow() function returns True.
E) Output the sum that you generated up to the previous row each time you process a row with a "1" in the Flag column.

5. Which two statements are true regarding access to a MQ queue? (Choose two.)

A) MQ stage connects to a queue manager in Client mode only.
B) MQ connector stage is capable of connecting to Queue manager in both Server and Client mode.
C) MQ stage and MQ connector stages support destructive reads.
D) MQ plugin stage can be used to read and write messages from a remote MQ message queue.

Solutions: