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IBM A2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Job Design & Development | 25% | - Slowly Changing Dimensions (SCD) - Transformer and derivation logic - Lookup, Join, Merge, and Funnel stages - Job sequences and parameterization |
| Performance & Troubleshooting | 15% | - Monitor and log execution - Handle errors and rejects - Partitioning and sorting optimization |
| Advanced Techniques | 10% | - Job deployment and packaging - Complex Flat File (CFF) stage - Environment variables and parameter sets |
| Configuration | 6% | - Create and configure projects - Understand architecture and components - Install and configure InfoSphere DataStage v8.5 |
| Persistent Storage | 10% | - Sequential files and file sets - Data sets and file structures - Restructure and format stages |
| Database Connectivity | 9% | - Database stage selection - Source and target database properties - ODBC, DB2, Oracle integration |
| Metadata Management | 6% | - Import and share metadata - Schema orchestration - Runtime Column Propagation (RCP) |
| Parallel Architecture | 9% | - Node pools and parallel processing - Data partitioning and collecting - Parallel execution and configuration files |
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
Question 1
Which statement is true about buffering?
A. The framework uses /tmp by default for buffering on Unix systems.
B. The buffer operator uses both memory and disk storage.
C. In a clustered environment, using a disk space on an NFS mount for buffering improves performance.
D. The "buffer" scratch disk pool needs to be defined to allow the framework to perform data buffering.
Question 2
How is Runtime Column Propagation (RCP) enabled for use in DataStage Jobs?
A. RCP is by default available for all DataStage Projects.
B. Use the DataStage Administrator to enable RCP for the project.
C. Use RCP definition wizard to initialize RCP for project use.
D. Set the APT_ENABLE_RCP environment variable to TRUE.
E. Use the Info Server web console to enable RCP
Question 3
Refer to the exhibit.
You submit a job from DataStage Director and then log onto your DataStage Linux server to issue the command "ps-ef | grepds" and receive the following screen:
Which process is the section leader for node2?
A. 7219
B. 7220
C. 7221
D. 7216
Question 4
You would like to pass values into parameters that will be used in a variety of downstream activity stages within a job sequence. What are three valid ways to do this? (Choose three.)
A. Check the "Propagate Parameters" checkbox in the Sequence Job properties.
B. Use the UserVariablesActivity Stage to populate the local parameters from an outside source such as a file.
C. Place a parameter set stage on the job sequence.
D. Use environment variables.
E. Use local parameters.
Question 5
Where are project level message handlers defined?
A. Director Client
B. Administrator Client
C. Designer Client
D. DSENV
Solutions:
| Question 1 Answer: B | Question 2 Answer: B | Question 3 Answer: C | Question 4 Answer: B,D,E | Question 5 Answer: B |
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