This document contains interview questions about Informatica transformations and concepts. Some key points include:
- Transformations like Filter, Joiner, Aggregator, Lookup are discussed along with their properties and usage.
- The differences between various transformations like Source Qualifier, Filter, Router, and types of joins are explained.
- Performance tuning techniques for transformations like Joiner are provided.
- Mapping concepts like parameters, variables, reusable transformations are covered.
- Lookup transformations and cache types are described.