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IBM A2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Database Connectivity | 9% | - ODBC, DB2, Oracle integration - Database stage selection - Source and target database properties |
| Metadata Management | 6% | - Import and share metadata - Schema orchestration - Runtime Column Propagation (RCP) |
| Configuration | 6% | - Understand architecture and components - Install and configure InfoSphere DataStage v8.5 - Create and configure projects |
| Persistent Storage | 10% | - Data sets and file structures - Sequential files and file sets - Restructure and format stages |
| Parallel Architecture | 9% | - Parallel execution and configuration files - Data partitioning and collecting - Node pools and parallel processing |
| Job Design & Development | 25% | - Lookup, Join, Merge, and Funnel stages - Slowly Changing Dimensions (SCD) - Transformer and derivation logic - Job sequences and parameterization |
| Performance & Troubleshooting | 15% | - Partitioning and sorting optimization - Handle errors and rejects - Monitor and log execution |
| Advanced Techniques | 10% | - Job deployment and packaging - Environment variables and parameter sets - Complex Flat File (CFF) stage |
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
What role must a user have to delete shared metadata assets from the repository?
- A. Information Analyzer User
- B. Common Metadata User
- C. Business Glossary Administrator
- D. DataStage Administrator
- E. Common Metadata Administrator
Correct Answer: E 🗳️
What is the lowest CPU cost partitioning method?
- A. Entire
- B. Random
- C. Hash
- D. Round Robin
Correct Answer: D 🗳️
Which condition is required to use the LastRowInGroup() function to determine a key break on a field?
- A. The input data has to be sorted by the key field, but it is not required that DataStage be able to detect this. For example, the input data might be sorted before it is input to the job. (However, the job will abort at runtime if the data isn't sorted.)
- B. The LastRowInGroup() function requires the data to be grouped by the key field, but the data does not have to be sorted.
- C. The LastRowInGroup() function does not require the data to be either sorted or grouped by the key field. If necessary the LastRowInGroup() function will perform a sort.
- D. The input data has to be sorted by the key field and DataStage must be able to detect that the data is sorted, for example, by the presence of a Sort stage.
Correct Answer: D 🗳️
Which two data repositories can you use for user authentication within the Information Server Suite? (Choose two.)
- A. the local operating system directory
- B. the IBM Metadata repository
- C. the IBM Information Server user directory
- D. the IBM Suite User Configuration file specified within the dsenv file
Correct Answer: A,C 🗳️
A client has multiple servers connected with a high bandwidth switch and has installed DataStage on one of them. There are five files (with the same record layout) that must be retrieved from three other servers using FTP. Which approach will retrieve and process all five files in the minimal amount of time?
- A. Create a sequence containing five separate DataStage jobs which each retrieve a single file and append it to a common Data Set. Next, process the resulting Data Set in an sixth DataStage job.
- B. In a single job, use three separate FTP Enterprise stages (one for each machine) with output links to a single Sort Funnel stage. Next, process the records without landing to disk.
- C. Use a single FTP Enterprise stage and specify five URI properties (one for each file). Next, process the records without landing to disk.
- D. In a single job, use five separate FTP Enterprise stages with output links to a single Sort Funnel stage. Next, process the records without landing to disk.
Correct Answer: C 🗳️
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