Database Processing for BIS - Database MCQ Questions and answers- Technical Aptitude Page-2 section-1

11.
Business Intelligence (BI) reporting analyses can be performed using ________ .

A. standard SQL only

B. extensions to SQL only

C. OLAP only

D. both standard SQL and extensions to SQL

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12.
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 ________ .

A. dirty data

B. inconsistent data

C. non-integrated data

D. a "wrong format" problem

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13.
The reports generated by a reporting system are usually not delivered in which of the following media?

A. Web portal

B. Commercial courier service

C. Digital dashboard

D. E-Mail

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14.
Data mining applications are used accomplish which of the following tasks?

A. Process transactions only

B. Do RFM analysis only

C. Do what-if analysis only

D. Do both RFM and what-if analysis

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15.
Which of the following is an unsupervised data mining technique?

A. Cluster analysis only

B. Regression Analysis only

C. RFM Analysis only

D. Both Regression Analysis and RFM Analysis

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16.
In OLAP, we are interested in ________ .

A. levels only

B. dimensions only

C. measures only

D. measures and dimensions

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17.
Which of the following is not a reason that operational data are difficult to read?

A. Non-duplicated data

B. Dirty data

C. Missing values

D. Non-integrated data

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18.
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 ________ .

A. the basic probability

B. support

C. lift

D. confidence

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19.
One popular classification technique in Business Intelligence (BI) reporting is ________ .

A. cluster analysis only

B. regression analysis only

C. RFM analysis only

D. both cluster analysis and regression analysis

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20.
We have done an RFM analysis on our customer data. Mary Jones has a score of "1 1 5". This series means that Mary ________ .

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.

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Database Processing for BIS - Database MCQ Questions and answers- Technical Aptitude

11. Business Intelligence (BI) reporting analyses can be performed using ________ .

Answer & Solution

12. 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 ________ .

Answer & Solution

13. The reports generated by a reporting system are usually not delivered in which of the following media?

Answer & Solution

14. Data mining applications are used accomplish which of the following tasks?

Answer & Solution

15. Which of the following is an unsupervised data mining technique?

Answer & Solution

16. In OLAP, we are interested in ________ .

Answer & Solution

17. Which of the following is not a reason that operational data are difficult to read?

Answer & Solution

18. 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 ________ .

Answer & Solution

19. One popular classification technique in Business Intelligence (BI) reporting is ________ .

Answer & Solution

20. We have done an RFM analysis on our customer data. Mary Jones has a score of "1 1 5". This series means that Mary ________ .

Answer & Solution

11.
Business Intelligence (BI) reporting analyses can be performed using ________ .

12.
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 ________ .

13.
The reports generated by a reporting system are usually not delivered in which of the following media?

14.
Data mining applications are used accomplish which of the following tasks?

15.
Which of the following is an unsupervised data mining technique?

16.
In OLAP, we are interested in ________ .

17.
Which of the following is not a reason that operational data are difficult to read?

18.
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 ________ .

19.
One popular classification technique in Business Intelligence (BI) reporting is ________ .

20.
We have done an RFM analysis on our customer data. Mary Jones has a score of "1 1 5". This series means that Mary ________ .