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 reject data from 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 load the data in the data warehouse and to create the necessary indexes A process to reject data from 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 ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing The generic two-level data warehouse architecture includes which of the following? Data that can extracted from numerous internal and external sources At least one data mart Near real-time updates All of these Data that can extracted from numerous internal and external sources At least one data mart Near real-time updates All of these ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing The role of the ETL process is to identify erroneous data and to fix them. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Periodic data are data that are physically altered once added to the store. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Transient data is which of the following? Data in which changes to existing records do not cause the previous version of the records to be eliminated Data in which changes to existing records cause the previous version of the records to be eliminated Data that are never deleted once they have been added Data that are never altered or deleted once they have been added Data in which changes to existing records do not cause the previous version of the records to be eliminated Data in which changes to existing records cause the previous version of the records to be eliminated Data that are never deleted once they have been added Data that are never altered or deleted once they have been added ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing A data mart is designed to optimize the performance for well-defined and predicable uses. True False True False ANSWER DOWNLOAD EXAMIANS APP
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