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What is tracing level and what are the types?
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When you have 2 servers in two different time zone and if you need to extract data from 1 server and load it in another server, how do you go about it? Best method to be used.
Assume u have a 24CPU machine with 24GB RAM, suggest how u would like to configure Informatica ,like number of concurrent sessions, RAM requirements etc,max partitions that u would permit per mapping.
what is the difference between cardinality and Nullability?
What is Relational Integrity?
What is virtual Data Warehousing?
how do u set the size of block buffer?
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?
what is Forward,Reverse and Re_engineering?
What are your responsibilities as an etl tester?
how do u decide whether u need to do aggregations at database level or at Informatica level?
Is apache nifi an etl tool?
what is meant by drill through?(Mascot)
Teradata 
