IBM A2090-421 Actual Tests : Assessment: InfoSphere DataStage v8.5

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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. There is a requirement to load mainframe data with array columns having redefined fields into a flat file. How can the Complex Flat File

A) Select the Records ID tab on the Stage page. Select a record from the Records list. Select the column(s) with the redefine from the Column list. Within CFF, use the Complex File Load Option window with "Flatten selective arrays" option selected.
B) CFF does not support flattening for redefined fields.
C) Within CFF, use the Complex File Load Option window with "Flatten selective arrays" option selected. Select the array with redefine column(s) and click redefine check box option.
D) Within CFF, use the Complex File Load Option window with "Flatten all arrays" option selected. CFF will handle flattening automatically.

2. Which environment variable determines where the temporary scores are stored?

A) APT_JOB_MON
B) APT_SAVE_SCORE
C) APT_HIGH_SCORE
D) APT_DUMP_SCORE

3. Which two statements are true about DataStage Parallel Build stages? (Choose two.)

A) On the Logic Post-Loop, you specify code that runs after all input records have been processed.
B) Build stages can only be used in a job that has Runtime Column Propagation (RCP) enabled.
C) The Build stage generates a C/C++ source file that is compiled and linked outside of DataStage.
D) The Build stage can be programmed to read and write automatically or code can be written to manually read and write rows.

4. Click the Exhibit button.

These three Sequential Files shown in the exhibit need to be joined. Join_1 is on Columns CustID and OrderID. Join_2 is on CustID and LocationID. What is the most efficient hash partitioning strategy for each link?

A) For LinkA Hash Partition on CustID, OrderID and LocationID; For LinkB Hash Partition on CustID, OrderID and LocationID; For LinkC Hash Partition on CustID, OrderID and LocationID; For LinkD Hash Partition on CustID, OrderID and LocationI
B) For LinkA Hash Partition on OrderID and CustID; For LinkB Hash Partition on OrderID and CustID; For LinkC Hash Partition on LocationID and CustID; For LinkD Hash Partition on LocationID and CustID.
C) For LinkA Hash Partition on CustID and OrderID; For LinkB Hash Partition on CustID and OrderID; For LinkC Hash Partition on CustID and LocationID; For LinkD Hash Partition on CustID and LocationID.
D) For LinkA Hash Partition on CustID;
For LinkB Hash Partition on CustID;
For LinkC Same Partition;
For LinkD Hash Partition on CustID.

5. What three types of links are supported by the Lookup Stage? (Select three)

A) A single output link
B) Multiple Input Links
C) Multiple reject links
D) A reference link
E) A single input link

Solutions: