Recent questions tagged data-mining-and-warehousing

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason RAssertion A: HDFS follows a master-slave architecture with Name Node a...

Which of the following table contains the primary information in the data warehouse?Dimension tableFact tableLookup tablePrimary table

Which of the following scenario may not be a good fit for HDFS in Big data paradigm?HDFS is not suitable for scenarios requiring multiple/simultaneous writes to the same ...

Identify the incorrect statement :The overall strategy drives the e-commerce data warehousing strategy.Data warehousing in an e-commerce environment should be done in a c...

Downflow is the process associated with _____ and back up of data in a warehouse.packagingarchivingextractionloading

A data warehouse is always _________.Subject orientedObject orientedProgram orientedCompiler oriented

​​​​​​​Data warehouse contains _____ data that is never found in operational environment.SummaryEncodedEncryptedScripted

​​​​​​​Data scrubbing isA process to reject data from the data warehouse and to create the necessary indexes.A process to load the data in the data warehouse and to creat...

Data warehouse bus matrix is a combination of Dimensions and Data martsDimensions and factsFacts and Data martsDimensions and Detailed facts

Discovery of new information in terms of pattern or rules from vast amount of data is called :Data miningScriptSpreadsheetNone of the above

Data warehousing refers toStoring data offline at a separate siteBacking up data regularlyIs related to data miningUses tape as opposed to disk

____ allows selection of the relevant information necessary for the data warehouse:The Top-Down ViewData Warehouse ViewDatasource ViewBusiness Query View

____ system is market oriented and is used for data analysis by knowledge workers including Managers, Executives adn Analysts.OLTPOLAPData SystemMarket System

Repository of information gathered from multiple sources, storing under unified scheme at a single site is calledData miningMeta DataData warehousingDatabase