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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. Which of the following is not an ODBC connector property?

A) Data source
B) Password
C) Remote server
D) Username

2. 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 the sum that you generated up to the previous row each time you process a row with a "1" in the Flag column.
B) 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.
C) Output the sum that you generated each time you process a row for which the LastRow() function returns True.
D) 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.
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. Use the LastRow() function to determine when the last group is done.

3. Which requirement must be met to read from a database in parallel using the ODBC connector?

A) Configure environment variable $APT_MAX_TRANSPORT_BLOCK_SIZE.
B) Set the Enable partitioning property to Yes.
C) Configure environment variable $APT_PARTITION_COUNT.
D) ODBC connector always reads in parallel.

4. Click on the Exhibit button.

Using this report, how many processes and on how many nodes does this score depict?

A) 2 processes on 2 nodes
B) 3 processes on 2 nodes
C) 2 processes on 3 nodes
D) 3 processes on 3 nodes

5. Which two statements are true about the use of named node pools? (Choose two.)

A) Named node pools constraints will limit stages to be executed only on the nodes defined in the node pools.
B) Clustered environments must have named node pools for data processing.
C) Using appropriately named node pools forces DataStage to use named pipes between stages.
D) Named node pools can allow separation of buffering from sorting disks.

Solutions: