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Home Database Database Processing for BIS Comments

  • Question
  • We have been given access to the company's operational data, and have been asked to produce a report. We discover that some of the data we need are in an SQL server database while other needed data are in a separate Oracle database. This is an example of ________ .


  • Options
  • A. dirty data
  • B. inconsistent data
  • C. non-integrated data
  • D. a "wrong format" problem

  • Correct Answer
  • non-integrated data 


  • Database Processing for BIS problems


    Search Results


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

    • Options
    • A. Data extraction/cleaning/preparation programs
    • B. Data warehouse data
    • C. Data metadata
    • D. None of the above are data warehouse components.
    • Discuss
    • 2. The "curse of dimensionality" relates to which problem of using operational data for BI reporting?

    • Options
    • A. Dirty data
    • B. Inconsistent data
    • C. Too much data
    • D. Non-integrated data
    • Discuss
    • 3. We have Market Basket data for 1,000 rental transactions at a Video Store. There are four videos for rent -- Video A, Video B, Video C and Video D. The probability that Video D will be rented given that Video C has been rented is known as ________ .

    • Options
    • A. the basic probability
    • B. support
    • C. lift
    • D. confidence
    • Discuss
    • 4. Business Intelligence (BI) systems do not obtain their data by which of the following means?

    • Options
    • A. Read and process data from an operational database
    • B. Process transactions
    • C. Process extracts from operational databases
    • D. Process data purchased from data vendors
    • Discuss
    • 5. With XML:

    • Options
    • A. views are not limited to one multi-valued path only.
    • B. documents can automatically be generated from database data only.
    • C. database data can automatically be extracted from XML documents only.
    • D. With XML, all of the above are true.
    • Discuss
    • 6. Which of the following is not a reason that operational data are difficult to read?

    • Options
    • A. Non-duplicated data
    • B. Dirty data
    • C. Missing values
    • D. Non-integrated data
    • Discuss
    • 7. RFM analysis uses customers' purchasing patterns to ________ .

    • Options
    • A. record transactions
    • B. analyze and rank customers
    • C. predict future sales using regression techniques
    • D. perform OLAP
    • Discuss
    • 8. Which of the following are not done by Business Intelligence (BI) systems?

    • Options
    • A. Analyze past and current activities only
    • B. Process and record transactions only
    • C. Both of the above are correct.
    • D. Neither of the above is correct.
    • Discuss
    • 9. The "F" in RFM analysis stands for ________ .

    • Options
    • A. frequently
    • B. freshness
    • C. fast food
    • D. fantasy
    • Discuss
    • 10. We have done an RFM analysis on our customer data. Mary Jones has a score of "1 1 5". This series means that Mary ________ .

    • Options
    • A. Has ordered recently, orders frequently, and places a large order when she orders.
    • B. Hasn't ordered recently, orders infrequently, but places a large order when she orders.
    • C. Has ordered recently, orders frequently, but doesn't place a large order when she orders
    • D. Hasn't ordered recently, orders infrequently, and doesn't place a large order when she orders.
    • Discuss


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