Informatica Interviewfragen und Antworten
Frage 21. Explain the concept of Data Transformation Manager (DTM) in Informatica.
The Data Transformation Manager (DTM) in Informatica is responsible for the execution of tasks within a session, such as reading, transforming, and loading data.
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Frage 22. What are the different types of transformations in Informatica?
Informatica supports various transformations, including Aggregator, Filter, Router, Lookup, Expression, Joiner, and many others.
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Frage 23. How can you improve session performance in Informatica?
Session performance in Informatica can be improved by optimizing transformations, using partitioning, increasing cache size, and tuning session properties.
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Frage 24. Explain the concept of a Dynamic Lookup Cache.
A Dynamic Lookup Cache in Informatica is created at runtime and allows the addition of new entries during the session.
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Frage 25. What is the purpose of a Source Qualifier transformation?
The Source Qualifier transformation in Informatica is used to specify properties for reading data from a relational or flat file source.
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Am hilfreichsten laut Nutzern:
- What is Informatica PowerCenter?
- What is a Repository Service in Informatica?
- Explain the concept of a Source Filter in Informatica.
- What is a Lookup Override in Informatica?
- What is a Session in Informatica?