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Data Mining Interview Questions

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Q16. Strategic value of data mining is
(a) Case sensitive
(b) Time sensitive
(c) System sensitive
(d) Technology sensitive

Q17. The full form of KDD is
(a) Knowledge Data Developer
(b) Knowledge Develop Database
(c) Knowledge Discovery Database
(d) None of the above

Q18. Which of the following is true
(a) The output of KDD is data
(b) The output of KDD is Query
(c) The output of KDD is Informaion
(d) The output of KDD is useful information

Q19. Which one is a data mining function that assigns items in a collection to target categories or classes
(a) Selection
(b) Classification
(c) Integration
(d) Reduction



Q20. State which one is correct
(a) The data warehouse view exposes the information being captured, stored, and managed by operational systems
(b) The top-down view exposes the information being captured, stored, and managed by operational systems
(c) The business query view exposes the information being captured, stored, and managed by operational systems
(d) The data source view exposes the information being captured, stored, and managed by operational systems

Q21. State which one is correct
(a) The data warehouse view allows the selection of the relevant information necessary for the data warehouse
(b) The top-down view allows the selection of the relevant information necessary for the data warehouse
(c) The business query view allows the selection of the relevant information necessary for the data warehouse
(d) The data source view allows the selection of the relevant information necessary for the data warehouse

Q22. Which one is not a kind of data warehouse application
(a) Information processing
(b) Analytical processing
(c) Transaction processing
(d) Data mining

Q23. Which one is true
(a) The data Warehouse is write only
(b) The data warehouse is read only
(c) The data warehouse is read write only
(d) None of the above is true

Q24. What is the full form of DSS in Data Warehouse
(a) Decisive selection system
(b) Decision support system
(c) Decision support solution
(d) Decision solution system

Q25. Usually _________ years is the time horizon in data warehouse
(a) 1-3
(b) 3-5
(c) 5-10
(d) 10-15



Q26. Which one is the heart of the warehouse
(a) Data mining database servers
(b) Data warehouse database servers
(c) Data mart database servers
(d) Relational database servers

Q27. State true or false "Operational metadata defines the structure of the data held in operational databases and used byoperational applications"
(a) True
(b) False

Q28. Which type of metadata is held in the catalog of the warehouse database system
(a) Algorithmic level metadata
(b) Right management metadata
(c) Application level metadata
(d) Structured level metadata

Q29. Which metadata consists of information in the enterprise that is not in classical form
(a) Linear metadata
(b) Star metadata
(c) Mushy metadata
(d) Increamental metadata

Q30. The number of fact table in star schema is
(a) 1
(b) 2
(c) 3
(d) 4


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