data mining & data ware house set 1 Detailed Explanation And More Example

Question : 1

Data dictionary is

a) Large collection of data mostly stored in a computer system

b) The removal of noise errors and incorrect input from a database

c) The systematic description of the syntactic structure of a specific database. It describes the structure of the attributes the tables and foreign key relationships.

d) None of these

Question : 2

Hybrid is

a) Combining different types of method or information

b) Approach to the design of learning algorithms that is structured along the lines of the theory of evolution.

c) Decision support systems that contain an Information base filled with the knowledge of an expert formulated in terms of if-then rules.

d) None of these

Question : 3

Subject orientation

a) The science of collecting, organizing, and applying numerical facts

b) Measure of the probability that a certain hypothesis is incorrect given certain observations.

c) One of the defining aspects of a data warehouse, which is specially built around all the existing applications of the operational dat(A)

d) None of these

Question : 4

Binary attribute are

a) This takes only two values. In general, these values will be 0 and 1 and they can be coded as one bit

b) The natural environment of a certain species

c) Systems that can be used without knowledge of internal operations

d) None of these

Question : 5

Transparency

a) The large set of candidate solutions possible for a problem

b) The information stored in a database that can be, retrieved with a single query.

c) Worth of the output of a machinelearning program that makes it understandable for humans

d) None of these

Question : 6

Heterogeneous databases referred to

a) A set of databases from different vendors, possibly using different database paradigms

b) An approach to a problem that is not guaranteed to work but performs well in most cases.

c) Information that is hidden in a database and that cannot be recovered by a simple SQL query.

d) None of these