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IBM C2090-303 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Administration and Troubleshooting | - Environment configuration and deployment - Job monitoring and logging - Error handling and debugging |
| Topic 2: Job Design and Development | - Job stages and links - Transformer stage usage - Data flows and sequencing |
| Topic 3: Performance Tuning and Optimization | - Partitioning strategies - Memory and resource optimization - Parallel execution tuning |
| Topic 4: DataStage Architecture and Components | - DataStage Director, Designer, and Administrator - Server vs Parallel jobs concepts - Parallel processing architecture |
| Topic 5: Data Integration and Connectivity | - Flat file and sequential file handling - Database connectors (ODBC, JDBC) - Enterprise system integration |
IBM InfoSphere DataStage v9.1 Sample Questions:
1. A job validates account numbers with a reference file using a Join stage, which is hash partitioned by account number. Runtime monitoring reveals that some partitions process many more rows than others. Assuming adequate hardware resources, which action can be used to improve the performance of the job?
A) Add a Sort stage in front of the Join stage. Sort by account number.
B) Change the number of nodes in the configuration file.
C) Use Round Robin partitioning on the stream and Entire partitioning on the reference.
D) Replace the Join with a Merge stage.
2. In the exhibit, a Funnel stage has two input links. Input 1 (Seq_File) comes from a Sequential File stage with "Readers per Node" set to "2". Input 2 (Dataset) comes from a dataset created with 3 partitions. In the Funnel stage, the funnel type is set to "Sequence".
The parallel configuration file contains 4 nodes. How many instances of the Funnel stage run in parallel?
A) 1
B) 2
C) 4
D) 6
3. What two binding types are supported by Information Services Director (ISD) for a parallel job that is designed to be used as a service? (Choose two.)
A) SOAP
B) EJB
C) SQL
D) STREAMS
E) HDFS
4. The Change Apply stage produces a change Data Set with a new column representing the code for the type of change. What are two change values identified by these code values? (Choose two.)
A) Edit
B) Remove Duplicates
C) Final
D) Copy
E) Deleted
5. Configuring the weighting column of an Aggregator stage affects which two options. (Choose two.)
A) Average of Weights
B) Uncorrected Sum of Squares
C) Coefficient of Variation
D) Maximum Value
E) Sum
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: A,B | Question # 4 Answer: D,E | Question # 5 Answer: B,E |
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