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Pop Quizzes 1-9

Spring 2012

BCIS 4660

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POP QUIZ #1

1. Which function should be used to calculate the total of all values in a column?

A. Count

B. Sum

C. Max

D. Min

E. Total

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POP QUIZ #12. Based on the following table description, use

SQL to list the complete STUDENT table.STUDENT[StudentID, FirstName, LastName, Street,

City, State, Zip]

A. SELECT all from Student;

B. LIST all STUDENT;

C. SELECT * FROM STUDENT;

D. SELECT LastName, FirstName, Street, City, State, Zip From Student;

E. PRINT STUDENT table;

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POP QUIZ #1

3. Based on the following table description, use SQL to show how many parts are in item class HW.

PART[PartNum, Description, OnHand, Class, Warehouse, Price]

A. SELECT SUM(*) FROM PART WHERE Class=‘HW’;B. SELECT COUNT(*) FROM PART WHERE

Class=‘HW’;C. COUNT(PartNum) IN PART;D. SELECT Count(*) from Part WHERE Class=‘HW’

GROUP BY PartNum;E. SELECT COUNT(Class) FROM PART Where

Class=“HW”;

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POP QUIZ #1

4. In SQL you may specify the primary key by entering a(n) ____ clause in an ALTER TABLE command.

A. INDEX KEY

B. SURROGATE KEY

C. CANDIDATE KEY

D. PRIMARY KEY

E. ALTERNATE KEY√

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POP QUIZ #1

5. Which SQL rule would you be violating, if you tried to delete a sales representative who currently has customers on file?

A. Entity integrity

B. List integrity

C. Customer integrity

D. Table integrity

E. Referential integrity√

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POP QUIZ #2

Pop Quiz 2 was an Attendance Credit

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Pop Quiz #3

1. In a 1:1 binary relationship the foreign key should be placed in ______

A. Parent entity

B. Child entity

C. Both entities

D. One or the other only

E. None of the above

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Pop Quiz #3

2. In a 1:N binary relationship the foreign key should be placed in ______

A. Parent entity

B. Child entity

C. Both entities

D. One or the other only

E. None of the above

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Pop Quiz #3

3. In a N:M binary relationship the foreign key should be placed in ______

A. Parent entity

B. Child entity

C. Both entities

D. One or the other only

E. None of the above

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Pop Quiz #3

4. In the diagram, the dashed line with the dot implies that Employee is the _____

A. Parent entity

B. Child entity

C. Both entities

D. One or the other only

E. None of the above

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Pop Quiz #3

5. In the diagram above, the “d. arrow” (pointing at a little circle next to a crowfoot) is pointing to which type of symbol?

A. Optional minimum cardinality

B. Optional maximum cardinality

C. Required minimum cardinality

D. Required maximum cardinality

E. None of the above

a. b.

c. d.

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Concepts of Database Management, 5th Edition, Pratt & Adamski

N:M Relationship Considerations Figure 6.24

Sample Sales table data

Sales Table

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Concepts of Database Management, 5th Edition, Pratt & Adamski

N:M:P Relationship Considerations Figure 6.25

Result obtained by splitting Sales table into three tables.However, Rejoining these 3 table will create anomalies.

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Pop Quiz #4

1. In Data Warehouse design, why is it beneficial to move from the Relational model to the Dimensional model?

A. To make it harder to answer business questions asked by managers

B. To make it easier to answer business questions asked by managers

C. To be able to look at the micro-level transactions that drive a business process

D. To be able to normalize our database

E. To ensure transaction consistency

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Pop Quiz #4

2. How are Process Metrics related to Business Processes?

A. Each metric centers around a business process

B. Each metric reveals how a process is quantified

C. Each metric reveals how a process is measured

D. All of the aboveE. None of the above

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Pop Quiz #4

3. Dimensions should:A. Be DEEP tablesB. Be WIDE tables

C. Be Fully normalized

D. Have many rows

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Pop Quiz #4

4. Fact tables should:A. Be DEEP tablesB. Be WIDE tables

C. Be Fully normalized

D. Have many attributes

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Pop Quiz #45. The Grain of a Star Schema refers to

A. The number of attributes in the Fact TableB. The number of rows in the Fact TableC. The level of detail recorded in the Fact tableD. The number of attributes in the Dimension

tablesE. The number of rows in the Dimension tables

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Pop Quiz #5

1. In the DW context, ETS stands for:A. Extended Technical Support

B. Extract, Transform, Store

C. Electronic Telecommunication Services

D. E-commerce Technical Standard

E. E-business Technical Standard

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Pop Quiz #5

2. What is Metadata?A. Data about data

B. High-level data that describe lower-level data

C. Essential ingredients in the transformation of raw data into knowledge

D. The “keys” that allow us to handle the raw data

E. All of the above

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Pop Quiz #5

3. Does a DW need the meanings of all reference codes that are used within the accounting data?

A. No. Codes in various systems are always consistent and can be looked up at query time.

B. No. An accurate history of metadata changes is not needed in a DW.

C. No. A common vocabulary must be established.D. Yes. Codes in various systems may differ.E. Maybe. It depends on the particular business.

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Pop Quiz #5

4. What do Transformation Maps contain?

A. Extraction history

B. Algorithms for summarization

C. Data ownership

D. Access patterns

E. All of the above

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Pop Quiz #5

5. According to Denis Kozar, the list of “seven deadly sins” of data warehouse implementation includes:

A. Thinking that “If you build it, they will come”B. No documentation of assumptionsC. Not adopting an architectural frameworkD. Not learning from mistakesE. All of the above

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Pop Quiz #6

1. Data MiningA. Is used to find new, hidden, or unexpected

patterns in data

B. Is also called knowledge data discovery (KDD)

C. May include statistical analysis, neural or fuzzy logic

D. All of the above

E. None of the above

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Pop Quiz #6

2. Some Data Mining techniques include:A. Classification

B. Association

C. Sequencing

D. Clustering

E. All of the above

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Pop Quiz #6

3. Association Analysis is also known as:

A. Affinity Analysis

B. Classification Analysis

C. Market Basket Analysis

D. Both (A) and (C)

E. Both (A) and (B)

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Pop Quiz #6

4. Web MiningA. Can suggest related links or recommend

new products to Web site visitors

B. Asks visitors to fill out Online Surveys

C. Encourages Web site visitors to post messages on bulletin boards

D. Is the habit of some Web site visitors to click on various links randomly and continuously

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Pop Quiz #6

5. An Association Rule example is:A. IF Income > 60K THEN Reject Application

B. Beer IMPLIES Diapers

C. Income = $20K + 12*SqFootage

D. IF SqFootage < 1,500 THEN Reject Application

E. Both (A) and (D)

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Pop Quiz #7

1. Why are Star Schemas so useful in Financial Planning and Accounting Information Systems?

A. Because accounting and financial planning information systems are not too complex

B. Because Star Schemas can support day-to-day financial transactions and accounting entries

C. Because business managers want to study thousands or millions of transactions at a high degree of summarization

D. Because highly normalized tables ensure data consistency

E. Because highly normalized tables do not ensure data consistency

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Pop Quiz #7

2. Commitments:A. Are considered by managers to be

money already spent

B. Are not considered by managers to be money already spent

C. Are considered by accountants to be money already spent

D. Require a related pre-existing payment

E. Are also known as disbursements

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Pop Quiz #7

3. Why can the grain of the Budget Star not be set at the budget line?

A. One account may draw from more than one budgets

B. One budget line may draw from more than one general ledger accounts

C. The budget star should have a higher degree of summarization

D. It is impossible to relate a budget line to a specific department

E. Budget facts relate to a specific month but budget lines relate to an entire year

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Pop Quiz #7

4. A drill-across reportA. Queries each fact table separately

B. Combines result sets from more than one fact table

C. Uses two or more queries with identical WHERE and GROUP BY clauses

D. All of the above

E. None of the above

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Pop Quiz #7

5. The benefit of a drill-across report is that:A. It focuses on one star schema onlyB. It does not require more than one star

schemasC. It minimizes response time, even though

it cannot ensure accurate resultsD. It ensures accurate results, even though

it makes response time much longerE. It ensures accurate results and

minimizes response time

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Pop Quiz #8

1. What are the guidelines for a Financial Reporting DW?

A. Its reports should be as reliable as the existing financial system

B. The sources for the Financial DW must be the approved, audited official systems

C. All changes and reversals in the financial system must be reflected in the financial DW

D. All of the above

E. None of the above

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Pop Quiz #8

2. What happens if the strict guidelines for Financial Reporting DW are not observed?

A. The DW cannot be used for financial or managerial accounting purposes

B. The DW can still be used for financial accounting purposes

C. The DW can still be used for managerial accounting purposes

D. The DW can still be used for financial and managerial accounting purposes

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Pop Quiz #8

3. Which financial reports can be supported by a financial reporting DW?

A. Balance Sheets only

B. Income Statements only

C. Balance Sheets and Income Statements only

D. Cash Flow Statements only

E. Balance Sheets, Income Statements, and Cash Flow Statements

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Pop Quiz #8

4. What is the benefit of having a Balance Sheet star schema that records facts at a detailed general ledger transaction grain?

A. It allows users to produce official Balance Sheet statements that can be used in auditing

B. It allows users to drill across the dimensions and get detailed data for internal analysis purposes

C. It allows users to replace the existing financial source system and still maintain all the data

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Pop Quiz #8

5. How do we produce fully additive measures for the Income Statement fact table?

A. We record IS entries based on a transactional model that records changes only

B. We record IS entries by maintaining running averages

C. We have to drill across the other dimensionsD. Income Statement entries are already

additive

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Pop Quiz #9

1. In 2013, internet video is expected to generate per month:

A. 161 Terabytes

B. 185 Exabytes

C. 5 Exabytes

D. 161 Exabytes

E. 18 Exabytes

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Pop Quiz #9

2. Some of the alternative storage techniques for data warehousing include:

A. Magnetic disk storage devices

B. Near-line and secondary storage devices

C. Tape storage devices

D. CD ROMs

E. All of the above

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Pop Quiz #9

3. There are some notable pitfalls in the Data mining area. These include:

A. Concerns for individual privacy

B. Problems with data accuracy

C. Organizations must be agile enough to respond to data mining discoveries

D. Data cleansing is very difficult, expensive and time consuming

E. All of the above

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Pop Quiz #9

4. “Signatures” are used for intrusion detection by

A. Searching for deviations from the norm.

B. Recognizing known patterns

C. Asking for someone to identify themselves

D. Handwriting analysis alone

E. None of the above

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Pop Quiz #9

5. Some Data Warehousing trends include:A. Increasing costs for data storage

B. Decreasing computer performance

C. Need for increasing numbers of highly skilled analysts each year

D. Fairly stable volumes of data to analyze

E. None of the above