Data Warehousing Every key used to join the fact table with a dimensional table should be a surrogate key. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing A goal of data mining includes which of the following? 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 To create a new data warehouse ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing A star schema has what type of relationship between a dimension and fact table? One-to-many Many-to-many All of these One-to-one One-to-many Many-to-many All of these One-to-one 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 Reconciled data is which of the following? 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. Data that has been selected and formatted for end-user support applications. Data stored in one operational system in the organization. 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
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