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can Informatica be used as a cleansing tool? If yes, give examples of transformations that can implement a data cleansing routine.
how would u estimate the size of Aggregator transform data and index cache?
how would u estimate the size of Lookup transform data and index cache?
Give a way in which u can implement a real time scenario where data in a table is changing and u need to look up data from it.How will u configure the look up transform for this purpose?
how do u estimate the depth of the session scheduling queue? Where do u set the number of maximum concurrent sessions that Informatica can run at a given time?
how do u really know that paging to disk is happening while u are using a lookup transform?
how do u set partition points in the mapping?
how do u estimate the number of partitions that a mapping really requires? Is it dependent on the machine configuration?
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.
explain the methodology of Data Warehousing?(Polaries)
what are the concerns of OLTP and DSS systems?
what is data modeling?
what is the difference steps for data modeling?
what is the difference between cardinality and Nullability?
what is Forward,Reverse and Re_engineering?
