Top 80+ Solved Data Mining MCQ Questions Answer
Q. ............................. is a summarization of the general characteristics or features of a target class of data.
a. data characterization
b. data classification
c. data discrimination
d. data selection
Q. ............................. is a comparison of the general features of the target class data objects against the general features of objects from one or multiple contrasting classes.
a. data characterization
b. data classification
c. data discrimination
d. data selection
Q. Strategic value of data mining is ......................
a. cost-sensitive
b. work-sensitive
c. time-sensitive
d. technical-sensitive
Q. ............................. is the process of finding a model that describes and distinguishes data classes or concepts.
a. data characterization
b. data classification
c. data discrimination
d. data selection
Q. iv) Handling uncertainty, noise, or incompleteness of data
a. i, ii and iv only
b. ii, iii and iv only
c. i, ii and iii only
d. all i, ii, iii and iv
Q. The full form of KDD is ..................
a. knowledge database
b. knowledge discovery database
c. knowledge data house
d. knowledge data definition
Q. . The full form of OLAP is
a. online analytical processing
b. online advanced processing
c. online advanced preparation
d. online analytical performance
Q. ......................... is a subject-oriented, integrated, time-variant, nonvolatile collection or data in support of management decisions.
a. data mining
b. data warehousing
c. document mining
d. text mining
Q. An .................. system is market-oriented and is used for data analysis by knowledge workers, including managers, executives, and analysts.
a. olap
b. oltp
c. both of the above
d. none of the above
Q. ........................ is a good alternative to the star schema.
a. star schema
b. snowflake schema
c. fact constellation
d. star-snowflake schema
Q. The ............................ exposes the information being captured, stored, and managed by operational systems.
a. top-down view
b. data warehouse view
c. data source view
d. business query view
Q. The type of relationship in star schema is ...............
a. many to many
b. one to one
c. one to many
d. many to one
Q. The .................. allows the selection of the relevant information necessary for the data warehouse.
a. top-down view
b. data warehouse view
c. data source view
d. business query view