Data Warehousing A star schema has what type of relationship between a dimension and fact table? Many-to-many One-to-many One-to-one All of these Many-to-many One-to-many One-to-one All of these ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Reconciled data is which of the following? Data that has been selected and formatted for end-user support applications. Data stored in one operational system in the organization. Data stored in the various operational systems throughout the organization. Current data intended to be the single source for all decision support systems. Data that has been selected and formatted for end-user support applications. Data stored in one operational system in the organization. Data stored in the various operational systems throughout the organization. Current data intended to be the single source for all decision support systems. ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing A goal of data mining includes which of the following? 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 To explain some observed event or condition To create a new data warehouse ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Transient data is which of the following? Data that are never deleted once they have been added Data in which changes to existing records cause the previous version of the records to be eliminated Data in which changes to existing records do not cause the previous version of the records to be eliminated Data that are never altered or deleted once they have been added Data that are never deleted once they have been added Data in which changes to existing records cause the previous version of the records to be eliminated Data in which changes to existing records do not cause the previous version of the records to be eliminated Data that are never altered or deleted once they have been added 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 reject data from the data warehouse and to create the necessary indexes 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 upgrade the quality of data before 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 upgrade the quality of data after it is moved into a data warehouse ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Every key used to join the fact table with a dimensional table should be a surrogate key. False True False True ANSWER DOWNLOAD EXAMIANS APP
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