QUIZ 8
Which of the following data-mining techniques identifies clusters of observations with similar characteristics?
Clustering and signal processing
A class of database technology used to store textual and other unstructured data is called:
NoSQL.
________ technologies are allowing more opportunities for real-time data warehouses.
RFID
Which of the following data-mining techniques searches for patterns and correlations in large data sets?
Rule discovery
All of the following are some beneficial applications for real-time data warehousing EXCEPT:
data entry.
A star schema contains both fact and ________ tables.
dimension
The level of detail in a fact table determined by the intersection of all the components of the primary key, including all foreign keys and any other primary key elements, is called the:
grain.
Data quality is important for all of the following reasons EXCEPT:____
it provides a stream of profit.
Data quality ROI stands for:
risk of incarceration.
Quality data can be defined as being:
unique.