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.