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what is different between sequential batch and concurrent
batch and which is recommended and why?
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how do u estimate the number of partitions that a mapping really requires? Is it dependent on the machine configuration?
what are business components in Informatica?
What are the types of data warehouse applications and what is the difference between data mining and data warehousing?
What is etl process? How many steps etl contains?
Explain about etl data integration software?
List few etl bugs?
Identifying the bottlenecks in various components of Informatica and resolving them.
can Informatica be used as a cleansing tool? If yes, give examples of transformations that can implement a data cleansing routine.
What is etl process?
SCD2 will work on only dimension tables as well as fact Table?
Explain do we need an etl tool? When do we go for the tools in the market?
What are materialized views & where do we use them?
Teradata 
