Informatica Questions et reponses d'entretien
Question 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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Question 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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Question 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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Question 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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Question 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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