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IBM A2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Data Transformation and Processing | 25% | - Lookup and reference data - Transformer stage logic - Slowly Changing Dimensions (SCD) - Handling NULL values and data types |
| DataStage Architecture and Components | 20% | - Client and server components - Parallel framework concepts - Project and repository management - InfoSphere Information Server architecture |
| Job Execution, Monitoring and Troubleshooting | 15% | - Director client usage - Job logs and error handling - Debugging and validation - Performance optimization |
| Advanced Features and Integration | 10% | - Job sequences and control flow - Source control integration - Metadata management |
| Job Design and Development | 30% | - Data linking and partitioning - Parameter sets and environment variables - Stage usage and configuration - Sequential and parallel job creation |
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
1. You are asked by your customer to collect partition level runtime meta-data for DataStage Parallel jobs. You must collect this data after each job completes. What two options allow you to automatically save row counts and CPU time for each instance of an operator? (Select two)
A) Enable the job property "Log report messages after each job run".
B) $APT_PERFORMANCE_DATA
C) Enable the job property "Record job performance data".
D) $APT_PM_PLAYER_TIMINGS
2. You are setting up user roles on Information Server Web console. Which two roles are required to allow a user to edit DataStage jobs? (Select two)
A) Suite User role
B) DataStage super operator
C) DataStage Developer
D) Information Analyzer Data Administrator
3. The result of a performance review for one of your job designs indicated this job needs to be split into two separate jobs. You also have been given the requirement to ensure you maintain parallelism (no re-partitioning) between these two new jobs.
Which single stage should you consider to accomplish maintaining parallelism and not introduce re-partitioning between these related jobs?
A) Data Set stage
B) Named Pipe stage
C) Copy stage
D) Sequential File stage
4. Which three statements are true about characteristics of shared containers? (Select three)
A) Containers allow multiple users to access a single job.
B) Containers are a group of stages and links.
C) Containers are used to execute jobs.
D) Containers allow you to provide pre-configured job design logic.
E) Containers allow you to implement recurring logic.
5. DataStage offers database connectivity through connectors, native parallel and plug-in stage types. Which two statements are correct? (Choose two.)
A) Next to the connector stage it is best to use the native parallel database stages.
B) ODBC API is a plug-in stage.
C) The connector stage offers better functionality and performance and is the best to use.
D) For maximum parallel performance, scalability, and features it is best to use the native parallel database stages.
Solutions:
| Question # 1 Answer: A,D | Question # 2 Answer: B,C | Question # 3 Answer: D | Question # 4 Answer: B,C,E | Question # 5 Answer: A,C |
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