What happens during the 'load' phase of a data ETL system?
A. Source data is read from the existing system
B. Source data is uploaded into the transformation software
C. Transformed data is written into a target database
D. Transformed data is transmitted to data visulisation software
Which of the following is found at the very bottom of an organisation's business intelligence stack?
A. Web
B. ETL system
C. IT infrastructure
D. Legacy systems
Which elements of a business intelligence stack provide storage capacity for big data?
A. Warehouse management
B. IT infrastructure
C. Dashboards
D. ETL systems
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