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IBM A2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Configuration | 6% | - Install and configure InfoSphere DataStage v8.5 - Understand architecture and components - Create and configure projects |
| Metadata Management | 6% | - Schema orchestration - Runtime Column Propagation (RCP) - Import and share metadata |
| Database Connectivity | 9% | - ODBC, DB2, Oracle integration - Database stage selection - Source and target database properties |
| Parallel Architecture | 9% | - Node pools and parallel processing - Parallel execution and configuration files - Data partitioning and collecting |
| Performance & Troubleshooting | 15% | - Partitioning and sorting optimization - Monitor and log execution - Handle errors and rejects |
| Advanced Techniques | 10% | - Environment variables and parameter sets - Job deployment and packaging - Complex Flat File (CFF) stage |
| Persistent Storage | 10% | - Restructure and format stages - Sequential files and file sets - Data sets and file structures |
| Job Design & Development | 25% | - Job sequences and parameterization - Slowly Changing Dimensions (SCD) - Lookup, Join, Merge, and Funnel stages - Transformer and derivation logic |
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
You are using the Change Capture stage in your job design to identify changes made to the input link (before image) to obtain the results in the output link. This job will be using a multi-node configuration file when executed. By default, the Change Capture stage produces an output change link with which two characteristics? (Choose two.)
- A. Table Definition based on the keys of the input link
- B. added column named Change_Code
- C. Table Definition based on the after input link
- D. added column named Difference_Value
Correct Answer: B,C 🗳️
The number of File Set data files created depends upon what three items? (Choose three.)
- A. Number of disks in the export or default disk pool connected to each processing node in the default node pool
- B. Number of physical processing nodes.
- C. Number of processing nodes in the default node pool.
- D. File system limitations.
- E. Schema definition of the file.
Correct Answer: A,C,D 🗳️
In which two operations can you create DataStage projects? (Choose two.)
- A. When adding new projects from DataStage Administrator.
- B. During DataStage installation.
- C. When exporting and importing a DataStage project from DataStage Director.
- D. When creating a project in the IBM Information Server Console.
Correct Answer: A,B 🗳️
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: C 🗳️
You are assigned to correct a job from another developer. The job contains 20 stages sourcing data from two Data Sets and many sequential files. The annotation in the job indicates who wrote the job and when, not the objective of the job. All link and stage names use the default names. One of the output columns has an incorrect value which should have been obtained using a lookup. What could the original developer have done to make this task easier for maintenance purposes?
- A. Named all stages and links based on what they do.
- B. Named all stage and links the same.
- C. Named all stage and links with column names and ideas.
- D. Indicated all stage names within the job annotation.
Correct Answer: A 🗳️
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