11. The classification or mapping of a class using a predefined class or group is called:

1. Data Set
2. Data Sub Structure
3. Data Discrimination
4. Data Characterisation

12. Which of the following process is not involved in the data mining process?

1. Knowledge extraction
2. Data transformation
3. Data exploration
4. Data archaeology

13. What is the analysis conducted for uncovering some interesting statistical correlations between various associated-attribute-value pairs called?

1. Mining of Correlations
2. Mining of Association
3. Mining of Clusters
4. None of the above

14. Classification is

1. A subdivision of a set of examples into a number of classes
2. The task of assigning a classification to a set of examples
3. A measure of the accuracy, of the classification of a concept that is given by a certain theory
4. None of the above

15. Data cleaning is

1. The systematic description of the syntactic structure of a specific database. It describes the structure of the attributes the tables and foreign key relationships
2. The removal of noise errors and incorrect input from a database
3. Large collection of data mostly stored in a computer system
4. None of the above

Data Warehousing MCQ Questions And Answers

16. Data mining helps in ____________

1. Inventory management
2. Sales promotion strategies
3. Marketing strategies
4. All of the above

17. Which is the correct option regarding data mining?

1. It can be referred to as the mining of knowledge from data
2. It can be defined as the process of extracting information from a large collection of data
3. The process of data mining involves several other processes like data cleaning, data transformation, and data integration
4. All of the above

18. Data mining requires

1. Large quantities of operational data stored over a period of time
2. Large mainframe computers
3. Several tape drives to store archival data
4. Lots of tactical data

19. Prediction is

1. One of several possible enters within a database table that is chosen by the designer as the primary means of accessing the data in the table
2. The result of the application of a theory or a rule in a specific case
3. Discipline in statistics that studies ways to find the most interesting projections of multi-dimensional spaces
4. None of the above

20. What is KDD in data mining?

1. Knowledge Discovery Data
2. Knowledge Discovery Database
3. Knowledge Data definition
4. Knowledge data house