Data Warehousing Question with Answer

31. The type of relationship in star schema is

  1. many-to-many.
  2. one-to-one.
  3. one-to-many.
  4. many-to-one.

32. _______test is used in an online transactional processing environment.

  1. MEGA.
  2. MICRO.
  3. MACRO.
  4. ACID.

33. Which of the following is not a component of a data warehouse?

  1. Metadata
  2. Current detail data
  3. Lightly summarized data
  4. Component Key

34. Detail data in single fact table is otherwise known as

  1. monoatomic data.
  2. diatomic data.
  3. atomic data.
  4. multiatomic data.

35. _____________consists of information in the enterprise that is not in classical form.

  1. Mushy metadata.
  2. Differential metadata.
  3. Data warehouse.
  4. Data mining.

36. Data warehouse contains_____________data that is never found in the operational environment.

  1. normalized.
  2. informational.
  3. summary.
  4. denormalized.

37. An .................. system is market-oriented and is used for data analysis by knowledge workers, including managers, executives, and analysts.

  1. OLAP
  2. OLTP
  3. Both of the above
  4. None of the above

38. The data is stored, retrieved & updated in

  1. OLAP.
  2. OLTP.
  3. SMTP.
  4. FTP.

39. Record cannot be updated in

  1. OLTP
  2. files
  3. RDBMS
  4. data warehouse

40. The star schema is composed of __________ fact table.

  1. one.
  2. two.
  3. three.
  4. four.

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