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IBM A2090-421 : Assessment: InfoSphere DataStage v8.5
- Exam Code: A2090-421
- Exam Name: Assessment: InfoSphere DataStage v8.5
- Updated: Sep 24, 2026
- Q & A: 194 Questions and Answers
About IBM A2090-421 Exam
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IBM A2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Advanced Techniques | 10% | - Complex Flat File (CFF) stage - Environment variables and parameter sets - Job deployment and packaging |
| Job Design & Development | 25% | - Transformer and derivation logic - Job sequences and parameterization - Lookup, Join, Merge, and Funnel stages - Slowly Changing Dimensions (SCD) |
| Database Connectivity | 9% | - Source and target database properties - Database stage selection - ODBC, DB2, Oracle integration |
| Configuration | 6% | - Create and configure projects - Understand architecture and components - Install and configure InfoSphere DataStage v8.5 |
| Persistent Storage | 10% | - Restructure and format stages - Sequential files and file sets - Data sets and file structures |
| Metadata Management | 6% | - Import and share metadata - Runtime Column Propagation (RCP) - Schema orchestration |
| Performance & Troubleshooting | 15% | - Monitor and log execution - Handle errors and rejects - Partitioning and sorting optimization |
| Parallel Architecture | 9% | - Node pools and parallel processing - Parallel execution and configuration files - Data partitioning and collecting |
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
Question #1
Input rows to a Transformer contain a product name field and a field with a list of colors the product can be ordered with. The colors are separated by the pipe character (|). Here is an example of an input row: "Shirt"| ....| "Red, Blue, Black"|... For each input row, you want to output multiple output rows, one for each color in the list. For the above example input row, three rows are to be output, one per color: "Shirt" ... "Red", "Shirt" ... "Blue", "Shirt" ... "Black".
Which three operations will you need to accomplish this? (Choose three.)
- A. Use the @ITERATION variable to determine which color in the ColorList field to extract using the Field function.
- B. Specify the following loop condition: @ITERATION <= n, where n is a stage variable initialized with number of loop iterations.
- C. Use the Count() function over the ColorList field to determine the number of loop iterations.
- D. Use the SaveInputRecord() to save the input row for processing in the loop. Use the GetInputRecord() to extract the row for each iteration of the loop.
- E. Use the LastRowInGroup() function to determine when the last color in the color list has been processed.
Correct Answer: A,B,C 🗳️
Question #2
You set environment variable $APT_ORACLE_LOAD_OPTIONS=PTIONS(DIRECT=TRUE, PARALLEL=TRUE)?for loading index organized tables.You set environment variable $APT_ORACLE_LOAD_OPTIONS=?PTIONS(DIRECT=TRUE, PARALLEL=TRUE)?for loading index organized tables. Which statement is accurate regarding the resulting effect of this environment variable setting?
- A. Oracle load will run in parallel and bypass DataStage Director.
- B. The Oracle load will run in parallel using simple direct path mode.
- C. The Oracle database stage will run in parallel using conventional path mode.
- D. Oracle load will fail when executed.
Correct Answer: D 🗳️
Question #3
You would like to invoke a job sequence from a web service. How can this be done?
- A. Create a DataStage routine that invokes the job sequence and invoke the routine from a DataStage job. Then use this job when creating the web service operation.
- B. Check the use job sequence checkbox when creating the web service.
- C. Select the job sequence when creating the web service operation,
- D. Invoke the job sequence using the dsjob command.
Correct Answer: A 🗳️
Question #4
You have been asked to assess the impact of replacing the DB2 Enterprise Stage with the DB2 Connector. You must identify all of the jobs and shared containers that use the DB2 Enterprise Stage.
What two Advanced Find criteria would you set to identify the jobs and containers? (Choose two.)
- A. Type
- B. Dependent upon
- C. Include Read only objects
- D. Where used
Correct Answer: A,D 🗳️
Question #5
A customer must compare a date column with a job parameter date to determine which output links the row belongs on. What stage should be used for this requirement?
- A. Switch stage
- B. Filter stage
- C. Compare stage
- D. Transformer stage
Correct Answer: D 🗳️
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