MCQ quiz on Data Warehousing multiple choice questions and answers on Data Warehousing MCQ questions quiz on Data Warehousing objectives questions with answer test pdf for interview preparations, freshers jobs and competitive exams. Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the subject.

Data Warehousing Question and Answer


1. Bill Inmon has estimated___________of the time required to build a data warehouse, is consumed inthe conversion process.

  1. 10 percent.
  2. 20 percent.
  3. 40 percent
  4. 80 percent

2. The time horizon in Data warehouse is usually

  1. 1-2 years.
  2. 3-4years.
  3. 5-6 years.
  4. 5-10 years.

3. The time horizon in operational environment is

  1. 30-60 days.
  2. 60-90 days.
  3. 90-120 days.
  4. 120-150 days.

4. Data transformation includes

  1. a process to change data from a detailed level to a summary level.
  2. a process to change data from a summary level to a detailed level.
  3. joining data from one source into various sources of data.
  4. separating data from one source into various sources of data.

5. Data scrubbing is

  1. a process to reject data from the data warehouse and to create the necessary indexes.
  2. a process to load the data in the data warehouse and tocreate the necessary indexes.
  3. a process to upgrade the quality of data after it is moved into a data warehouse.
  4. a process to upgrade the quality of data before it is movedinto a data warehouse

6. The load and index is

  1. a process to reject data from the data warehouse and to create the necessary indexes.
  2. a process to load the data in the data warehouse and to create the necessary indexes.
  3. a process to upgrade the quality of data after it is moved into a data warehouse.
  4. a process to upgrade the quality of data before it is moved into a data warehouse.

7. The modern CASE tools belong to _______ category.

  1. analysis.
  2. Development
  3. Coding
  4. Delivery

8. ________________ is held in the catalog of the warehouse database system.

  1. Application level metadata.
  2. Algorithmic level metadata.
  3. Departmental level metadata.
  4. Corewarehouse metadata.

9. _________maps the core warehouse metadata to business concepts, familiar and useful to end users.

  1. Application level metadata.
  2. User level metadata.
  3. Enduser level metadata.
  4. Core level metadata.

10. The generic two-level data warehouse architecture includes

  1. at least one data mart.
  2. data that can extracted from numerous internal and external sources.
  3. near realtimeupdates.
  4. far reaz-time updates.
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Data Warehousing Question and Answer





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