what are the facilities provided by data warehouse to
analytical users?
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1.Identify and discuss the problems which are occurred during data quality verification for the single-source and multi-source problems. 2.Testing has very important role in DWH. In ETL testing phase, how can we perform the integration testing and regression testing? 3.What are the perquisites of system testing and regression testing in ETL phase?
List few etl bugs?
what are business components in Informatica?
Identifying the bottlenecks in various components of Informatica and resolving them.
Define Dynamic push down optmization?
Explain the key challenges that you face while performing etl testing.
When do we use dynamic cache and static cache in connected and unconnected lookup transformations? Difference between stop and abort
What are the names of the layers in etl?
What is granularity? Please explain with example
what are the reporting tools and difference between them?
what are the data sources extracted from logistics cockpit in sap bw project and what is the requirement for it ?
what are Lookup caches options? Including persistent caches.
Teradata 
