Question 11 :
Both status data and event data can be stored in a database.
Question 12 :
Static extract is used for ongoing warehouse maintenance.
Question 13 :
Data scrubbing can help upgrade data quality; it is not a long-term solution to the data quality problem.
Question 14 :
Every key used to join the fact table with a dimensional table should be a surrogate key.
Question 15 :
Derived data are detailed, current data intended to be the single, authoritative source for all decision support applications.