Data Mining and Data Warehouse MCQs with answers Page - 8

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Admin • 828.03K Points
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Q. The terms equality and roll up are associated with ____________.

  • (A) olap.
  • (B) visualization.
  • (C) data mart.
  • (D) decision tree.

A

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Q. Exceptional reporting in data warehousing is otherwise called as __________.

  • (A) exception.
  • (B) alerts.
  • (C) errors.
  • (D) bugs.

A

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Q. ____________ is a metadata repository.

  • (A) prism solution directory manager.
  • (B) corba.
  • (C) stunt.
  • (D) cobweb.

A

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Q. ________________ is an expensive process in building an expert system.

  • (A) analysis.
  • (B) study.
  • (C) design.
  • (D) information collection.

A

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Q. The full form of KDD is _________.

  • (A) knowledge database.
  • (B) knowledge discovery in database.
  • (C) knowledge data house.
  • (D) knowledge data definition.

A

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Q. The first International conference on KDD was held in the year _____________.

  • (A) 1996.
  • (B) 1997.
  • (C) 1995.
  • (D) 1994.

A

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Q. Removing duplicate records is a process called _____________.

  • (A) recovery.
  • (B) data cleaning.
  • (C) data cleansing.
  • (D) data pruning.

A

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Q. ____________ contains information that gives users an easy-to-understand perspective of the information stored in the data warehouse.

  • (A) business metadata.
  • (B) technical metadata.
  • (C) operational metadata.
  • (D) financial metadata.

A

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Q. _______________ helps to integrate, maintain and view the contents of the data warehousing system.

  • (A) business directory.
  • (B) information directory.
  • (C) data dictionary.
  • (D) database.

A

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Q. Discovery of cross-sales opportunities is called ________________.

  • (A) segmentation.
  • (B) visualization.
  • (C) correction.
  • (D) association.

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