Data Warehousing Data transformation includes which of the following? Joining data from one source into various sources of data A process to change data from a detailed level to a summary level A process to change data from a summary level to a detailed level Separating data from one source into various sources of data Joining data from one source into various sources of data A process to change data from a detailed level to a summary level A process to change data from a summary level to a detailed level Separating data from one source into various sources of data ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Data scrubbing is which of the following? A process to load the data in the data warehouse and to create the necessary indexes A process to upgrade the quality of data before it is moved into a data warehouse A process to upgrade the quality of data after it is moved into a data warehouse A 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 create the necessary indexes A process to upgrade the quality of data before it is moved into a data warehouse A process to upgrade the quality of data after it is moved into a data warehouse A process to reject data from the data warehouse and to create the necessary indexes ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Data in operational systems are typically fragmented and inconsistent. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing A data warehouse is which of the following? Organized around important subject areas. Can be updated by end users. Contains numerous naming conventions and formats. Contains only current data. Organized around important subject areas. Can be updated by end users. Contains numerous naming conventions and formats. Contains only current data. ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing A goal of data mining includes which of the following? To explain some observed event or condition To create a new data warehouse To analyze data for expected relationships To confirm that data exists To explain some observed event or condition To create a new data warehouse To analyze data for expected relationships To confirm that data exists ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing The extract process is which of the following? Capturing a subset of the data contained in various operational systems Capturing all of the data contained in various decision support systems Capturing all of the data contained in various operational systems Capturing a subset of the data contained in various decision support systems Capturing a subset of the data contained in various operational systems Capturing all of the data contained in various decision support systems Capturing all of the data contained in various operational systems Capturing a subset of the data contained in various decision support systems ANSWER DOWNLOAD EXAMIANS APP
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