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

1

A BI reporting system does not ________ .

A) create meaningful information B) deliver information to users on a timely basis C) use statistical procedures to predict future events D) use disparate data sources

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Answer & Solution

Answer: Option C

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2

Which of the following are not done by Business Intelligence (BI) systems?

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.

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Answer & Solution

Answer: Option B

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3

Business Intelligence (BI) systems do not obtain their data by which of the following means?

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

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Answer & Solution

Answer: Option B

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4

The "curse of dimensionality" relates to which problem of using operational data for BI reporting?

A) Dirty data B) Inconsistent data C) Too much data D) Non-integrated data

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Answer & Solution

Answer: Option C

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5

A report generated by a reporting system is delivered to the appropriate users via a user-accessed Web site. This system uses which of the following report modes?

A) Push B) Pull C) RFM D) OLAP

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Answer & Solution

Answer: Option B

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6

RFM analysis uses customer's purchasing patterns to ________ .

A) record transactions B) analyze and rank customers C) predict future sales using regression techniques D) perform OLAP

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Answer & Solution

Answer: Option B

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7

The "F" in RFM analysis stands for ________ .

A) frequently B) freshness C) fast food D) fantasy

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Answer & Solution

Answer: Option A

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8

We have Market Basket data for 1,000 rental transactions at a Video Store. There are for videos for rent -- Video A, Video B, Video C and Video D. The probability that both Video C and Video D are rented at the same time is known as ________ .

A) the basic probability B) support C) lift D) confidence

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Answer & Solution

Answer: Option B

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9

Business Intelligence (BI) reporting systems cannot do which of the following operations?

A) Filter data B) Group data C) Modify data D) Both filter and group data

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Answer & Solution

Answer: Option C

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10

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

A) Data extraction/cleaning/preparation programs B) Data warehouse data C) Data metadata D) None of the above are data warehouse components.

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Answer & Solution

Answer: Option C

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