Cognos Interview Question and Answers

21. How to generate cubes in cognos?
  Power Play Transformer contain dimension,measure,model and cube. we can generate cube different way.
Just right click on cube name and build.
we can write script in unix. using that we can generate cube.
 
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22. What is snapshot?
  A Snapshot is the copy of data, when we create a snapshot it copies the exact data that'srelated to the at perticular report, we use snapshot when ever we want to compare reports.(Example :we want to compare this months report with previous months).
 
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23. Define datastores in Cognos?
  Data sources, also known as query databases, are relational databases, dimensionalcubes, files, or other physical data stores that can be accessed through IBM Cognos8. Application Tier Components use data source connections to access data sources.
 
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24. What is metric store database?
 
    A metric store database is a special case of a query database. A metric storedatabase is used to store the information associated with metrics that appear inscorecards, including
  • targets
  • performance metrics
  • thresholds
  • membership in sorecards
  • links to related reports
 
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25. What is Report item?
  Report item is nothing but a query item when it is drag and drop into the work area.
 
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