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Last Updated: Sep 12, 2026
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IBM A2090-421 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Integration | - Data transformation techniques - Connectivity to data sources and targets |
| Performance Optimization | - Parallel processing optimization - Job tuning and bottleneck analysis |
| Job Development | - Stages and transformers usage - Job sequences and control logic - Parallel job design principles |
| Administration and Troubleshooting | - Error handling and recovery - Job monitoring and logging |
| InfoSphere DataStage Architecture | - Server and Parallel Job Architecture - Components (Designer, Director, Administrator) |
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
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_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". - 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_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".
Correct Answer: B 🗳️
You have a DataStage job on SMP environment. It contains an input sequential file, a Modify stage, followed by a Transformer stage, and an output Sequential File stage. The job is run with three nodes. The engine uses all default settings. How many processes will this job create?
- A. 12
- B. 9
- C. 19
- D. 16
Correct Answer: B 🗳️
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.
Correct Answer: A,C 🗳️
Records in a source file must be copied to multiple output streams for further processing. Which two conditions would require the use of a Transformer stage instead of a Copy stage? (Choose two.)
- A. Converting some input columns from integers to strings.
- B. Directing selected output records down one output link rather than another.
- C. Concatenating data from multiple input columns.
- D. Renaming one or more output columns.
Correct Answer: B,C 🗳️
Your customer is using Source Code Control Integration for Information server and have tagged artifacts for version 1. You must create a deployment package from the version 1.
Before you create the package you will have to ensure the project is up to date with version 1.
What two things must you do to update the meta-data repository with the artifacts tagged as version 1? (Select two)
- A. Right-click the asset and click Replace From Source Control Workspace.
- B. Right-click the asset and click the Team Import command.
- C. Right-click the asset and click the Deploy command.
- D. Right-click the asset and click the Team command to update the Source Control Workspace with the asset.
Correct Answer: B,D 🗳️
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