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IBM Assessment: IBM InfoSphere DataStage v9.1 Assessment Sample Questions:

1. What is the correct method to process a file containing multiple record types using a Complex Flat File stage?

A) Manually break the file into multiple files by record type.
B) Define record definitions on the Constraints tab of the Complex Flat File stage.
C) Flatten the record types into a single record type.
D) Load a table definition for each record type on the Records tab of the Complex Flat File stage.

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

3. Which method is used to specify when to stop a job because of too many rejected rows with an ODBC Connector?

A) In the Abort when field, select Count
B) In the Abort when field, select Amount
C) In the Abort when field, select Rows
D) In the Abort when field, select Max

4. Which option is required to identify a particular job player processes?Which option is required to identify a particular job? player processes?

A) Set $APT_PM_SHOW_PIDS to true.
B) Use the DataStage Director Job administration screen to display active player processes.
C) Log onto the server and issue the command "ps -ef | grep ds".
D) Set $APT_DUMP_SCORE to true.

5. Which partitioning method requires a key?

A) Sort Merge
B) Modulus
C) Round Robin
D) Same

Solutions: