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 relations hips. |
D. | None of these |
Option: C Explanation : Click on Discuss to view users comments. |
Data warehouse is
A. | The actual discovery phase of a knowledge discovery process |
B. | The stage of selecting the right data for a KDD process |
C. | A subject-oriented integrated time variant non-volatile collection of data in support of management |
D. | None of these |
Option: C Explanation : Click on Discuss to view users comments. |
Data cleaning 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 |
Option: B Explanation : Click on Discuss to view users comments. |
Decision support systems (DSS) is
A. | A family of relational database management systems marketed by IBM |
B. | Interactive systems that enable decision makers to use databases and models on a computer in order to solve ill-structured problems |
C. | It consists of nodes and branches starting from a single root node. Each node represents a test, or decision |
D. | None of these |
Option: B Explanation : Click on Discuss to view users comments. |
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