Data Warehousing A goal of data mining includes which of the following? 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 To explain some observed event or condition 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
Data Warehousing The generic two-level data warehouse architecture includes which of the following? At least one data mart All of these Data that can extracted from numerous internal and external sources Near real-time updates At least one data mart All of these Data that can extracted from numerous internal and external sources Near real-time updates ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Derived data are detailed, current data intended to be the single, authoritative source for all decision support applications. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing The extract process is which of the following? Capturing a subset of the data contained in various decision support systems Capturing all 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 operational systems Capturing a subset of the data contained in various decision support systems Capturing all 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 operational systems ANSWER DOWNLOAD EXAMIANS APP
Data Warehousing Transient data is which of the following? 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 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 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS