Questions and answers for exam Preparation

MCQs

Total Questions : 60 | Page 2 of 6 pages

Question 11. Key is referred to

Non-trivial extraction of implicit previously unknown and potentially useful information from dat(A)
Set of columns in a database table that can be used to identify each record within this table uniquely
collection of interesting and useful patterns in a database
none of these

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Answer: Option B. -> Set of columns in a database table that can be used to identify each record within this table uniquely

Question 12. Data selection is

The actual discovery phase of a knowledge discovery process
The stage of selecting the right data for a KDD process
A subject-oriented integrated timevariant non-volatile collection of data in support of management
None of these

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Answer: Option B. -> The stage of selecting the right data for a KDD process

Question 13. Expert systems

Combining different types of method or information
Approach to the design of learning algorithms that is structured along the lines of the theory of evolution.
Decision support systems that contain an Information base filled with the knowledge of an expert formulated in terms of if-then rules
None of these

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Answer: Option C. -> Decision support systems that contain an Information base filled with the knowledge of an expert formulated in terms of if-then rules

Question 14. n(log n) is referred to

A measure of the desired maximal complexity of data mining algorithms
A database containing volatile data used for the daily operation of an organization
Relational database management system
None of these

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Answer: Option A. -> A measure of the desired maximal complexity of data mining algorithms

Question 15. Black boxes

This takes only two values. In general, these values will be 0 and 1 and they can be coded as one bit.
The natural environment of a certain species
Systems that can be used without knowledge of internal operations
None of these

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Answer: Option C. -> Systems that can be used without knowledge of internal operations

Question 16. Prolog is

A programming language based on logic
A computer where each processor has its own operating system, its own memory, and its own hard disk.
Describes the structure of the contents of a database.
None of these

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Answer: Option A. -> A programming language based on logic

Question 17. Inclusion dependencies

The amount of information with in data as opposed to the amount of redundancy or noise
One of the defining aspects of a data warehouse
Restriction that requires data in one column of a database table to the a subset of another-column
None of these

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Answer: Option C. -> Restriction that requires data in one column of a database table to the a subset of another-column

Question 18. Falsification is

Modular design of a software application that facilitates the integration of new modules
Showing a universal law or rule to be invalid by providing a counter example
A set of attributes in a database table that refers to data in another table
None of these

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Answer: Option B. -> Showing a universal law or rule to be invalid by providing a counter example

Question 19. Euclidean distance measure is

A stage of the KDD process in which new data is added to the existing selection.
The process of finding a solution for a problem simply by enumerating all possible solutions according to some pre-defined order and then testing them.
The distance between two points as calculated using the Pythagoras theorem
None of these

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Answer: Option C. -> The distance between two points as calculated using the Pythagoras theorem

Question 20. Massively parallel machine is

A programming language based on logic
A computer where each processor has its own operating system, its own memory, and its own hard disk
Describes the structure of the contents of a database.
None of these

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Answer: Option B. -> A computer where each processor has its own operating system, its own memory, and its own hard disk