Data Warehousing Data scrubbing can help upgrade data quality; it is not a long-term solution to the data quality problem. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Transient data is which of the following? 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 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 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 deleted once they have been added Data that are never altered or deleted once they have been added ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Star schema is suited to online transaction processing, and therefore is generally used in operational systems, operational data stores, or an EDW. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing The load and index is which of the following? 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 load the data in 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 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 load the data in 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 A star schema has what type of relationship between a dimension and fact table? One-to-one All of these Many-to-many One-to-many One-to-one All of these Many-to-many One-to-many ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing A goal of data mining includes which of the following? To create a new data warehouse To explain some observed event or condition To analyze data for expected relationships To confirm that data exists To create a new data warehouse To explain some observed event or condition To analyze data for expected relationships To confirm that data exists ANSWER DOWNLOAD EXAMIANS APP
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