Data Warehousing and Mining MCQs Questions and Answers Pdf

51. ___________ is a method of incremental conceptual clustering.
A. CORBA.
B. OLAP.
C. COBWEB.
D. STING.

ANSWER:
C

52. Effect of one attribute value on a given class is independent of values of other attribute is called
_________.
A. value independence.
B. class conditional independence.
C. conditional independence.
D. unconditional independence.

ANSWER:
A

53. The main organizational justification for implementing a data warehouse is to provide ______.
A. cheaper ways of handling transportation.
B. decision support.
C. storing large volume of data.
D. access to data.

ANSWER:
C

54. Multidimensional database is otherwise known as____________.
A. RDBMS
B. DBMS
C. EXTENDED RDBMS
D. EXTENDED DBMS

ANSWER:
B

55. Data warehouse architecture is based on ______________.
A. DBMS.
B. RDBMS.
C. Sybase.
D. SQL Server.

ANSWER:
B

56. Source data from the warehouse comes from _______________.
A. ODS.
B. TDS.
C. MDDB.
D. ORDBMS.

ANSWER:
A



57. ________________ is a data transformation process.
A. Comparison.
B. Projection.
C. Selection.
D. Filtering.

ANSWER:
D

58. The technology area associated with CRM is _______________.
A. specialization.
B. generalization.
C. personalization.
D. summarization.

ANSWER:
C

59. SMP stands for _______________.
A. Symmetric Multiprocessor.
B. Symmetric Multiprogramming.
C. Symmetric Metaprogramming.
D. Symmetric Microprogramming.

ANSWER:
A

60. __________ are designed to overcome any limitations placed on the warehouse by the nature of the relational data model.
A. Operational database.
B. Relational database.
C. Multidimensional database.
D. Data repository.

ANSWER:
C