data mining and data ware house Practice Questions Answers Test with Solutions & More Shortcuts

Question : 26

Biotope 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 : 27

Cartesian space is

a) It is a memory buffer that is used to store data that is needed frequently by an algorithm in order to minimize input/ output traffic

b) The number of different values that a given attribute can take

c) A mathematical conception of space where the location of a point is given by reference to its distance from two or three axes intersecting at right angles

d) None of these

Question : 28

Meta-data is

a) A programming language based on logic

b) A computer where each processor has its own operating system, its own memory, and its own hard disk.

c) Describes the structure of the contents of a database

d) None of these

Question : 29

Cluster is

a) Group of similar objects that differ significantly from other objects

b) Operations on a database to transform or simplify data in order to prepare it for a machine-learning algorithm

c) Symbolic representation of facts or ideas from which information can potentially be extracted

d) None of these

Question : 30

Heuristic is

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