Information Systems: Unit 2 Chapter 6 - 8 and BP18


Chapter 6 – Valuing Organizational Information

Question 1       The completeness characteristic of high-quality information ensures that there are no missing data values.
True
False

Question 2       Reports for each sales person, product, and part are examples of detail or fine information granularities.
True
False

Question 3       Which of the following represents the different information levels?
Detail, summary, aggregate
 Document, presentation, spreadsheet, database
Individual, department, enterprise
 None of the above

Question 4       Which of the following implies that information is current with respect to the business requirements?
Uniqueness
Accuracy
Consistency
Timeliness

Question 5       Transactional information is used when performing operational tasks and repetitive decisions such as analyzing daily sales reports and production schedules to determine how much inventory to carry.
True
False

Question 6       Which of the following is an example of transactional information?
 Trend projection
Sales projection
Purchasing stock
All of the above

Question 7       Which of the following is an example of transactional information?
Withdrawing cash from an ATM
Making an airline reservation
Purchasing stock
All of the above

Question 8       Which of the following is a characteristic of information?
Type (Transactional & Analytical)
Timeliness
Quality
All of the above

Question 9       What is a real-time system?
Provides real-time information in response to query requests
Encompasses all of the information contained within a single business process or unit of work, and its primary purpose is to support the performing of daily operational tasks
Encompasses all organization information, and its primary purpose is to support the performing of managerial analysis tasks
Provides immediate, up-to-date information

Question 10     Which of the following is not one of the five characteristics common to high quality information?
Accuracy
Completeness
Quantity
Consistency

Question 11     What encompasses all of the information contained within a single business process or unit of work, and its primary purpose is to support the performing of daily operational tasks?
Transactional information
Timeliness
Quality
Analytical information

Question 12     Which of the following implies that aggregate or summary information is in agreement with detailed information?
Accuracy
Timeliness
Consistency
Uniqueness
Completeness

Question 13     Transactional information encompasses all organizational information and its primary purpose is to support the performing of managerial analysis tasks.
True
False

Question 14     What are the different types of information?
Data, formats, granularities
Levels, forms, granularities
Levels, formats, granularities
Levels, forms, data

Question 15     Which of the following represents the different information formats?
Individual, department, enterprise
Detail, summary, aggregate
Document, presentation, spreadsheet, database
None of the above

Question 16     Organizations use transactional information to make repetitive decisions.
True
False

Question 17     A Purchasing stock is an example of analytical information.
True
False

Question 18     What is immediate, up-to-date information?
Real-time information
Real-time systems
Information granularity
All of the above

Question 19     What encompasses all organizational information and its primary purpose is to support the performing of managerial analysis tasks?
Analytical information
Transactional information
Timeliness
Quality

Question 20     Which of the following represents the different information granularities?
Detail, summary, aggregate
Document, presentation, spreadsheet, database
Individual, department, enterprise
None of the above

Question 21     Organizations use analytical information to make ad hoc decisions.
True
False

Question 22     All of the following are characteristics of information, except:
Analytical
Transactional
Timeliness
Quantity

Question 23     What provides real-time information in response to query requests?
Real-time information
Real-time systems
Information level
All of the above

Question 24     The uniqueness characteristic of high-quality information ensures that all the values are correct.
True
False

Question 25     Timely information must be up-to-the-second to be accurate.
True
False

Question 26     ___________ achieved great success by managing information       
Office Max    
AT&T 
Staples
Samsung Electronics

Question 27     Organizational information comes in different levels, formats, and granularities.
True
False

Question 28     Which of the following represents a level of information within an organization?
Individual
Enterprise
Department
All of the above

Question 29     What is one of the biggest pitfalls associated with real-time information?
It is only available in aggregate levels of granularity.
It continually changes.
It rarely changes
It is only available to high-level executives due to the expense.

Question 30     What is it called when each transaction, entity, and event is represented only once in the information?
Timeliness
Uniqueness
Consistency
Accuracy

Question 31     Match the following characteristics of high quality information with their definition.
1.         Accuracy - All values are correct
2.         Completeness - No values are missing
3.         Consistency - Summary and detailed information are in agreement
4.         Uniqueness - Each thing is represented only once
5.         Timeliness - Information is current with respect to business requirements


Chapter 7 Storing Organizational Information--Database

Question 1       Ideally, an organization only wants to build forward integrations.
True
False

Question 2       The physical view and the logical view are the same in a relational database management system.
True
False

Question 3       A foreign key in the relational database model is a primary key of one table that appears as an attribute in another table.
True
False

Question 4       What is integration?
Allows separate systems to communicate directly with each other
Takes information entered into a given system and sends it to the database
Takes information entered into a given system and sends it to other processes
Takes information entered into a given system and sends it to the DBMS

Question 5       A data-driven website is an interactive website kept constantly updated and relevant to the needs of its customers through the use of a database.
True
False

Question 6       What refers to how well a system can adapt to increased demands?
Performance
Scalability
Information integrity
Redundancy

Question 7       A database management system (DBMS) can only interact with other software application programs.
True
False

Question 8       In the relational database model, what are characteristics or properties of an entity?
Entity
Logical view
Physical view
Attribute

Question 9       Why do relational databases use primary keys and foreign keys?
To create logical relationships
To create a database
To create physical relationships
All of the above

Question 10     A foreign key is a field (or group of fields) that uniquely identifies a given entity in a table.
True
False

Question 11     What is the physical view of information?
Deals with the physical storage of information on a storage device such as a hard disk
Focuses on how users logically access information to meet their particular business needs
Deals with the logical storage of information on a storage device such as a hard disk
Focuses on how users physically access information to meet their particular business needs

Question 12     What type of website is best to build for a general informational website with static information?
Data-driven website
Static website
Relational website
All of the above

Question 13     Which of the following is true in regards to the elimination of redundant information?
Uses additional hard disk space
Makes performing information updates harder
Improves information quality
All of the above

Question 14     What type of integrity constraint does not allow someone to create an order for a nonexistent customer?
Relational integrity constraint
Business-critical integrity constraint
Information-critical integrity constraint
None of the above

Question 15     Relational integrity constraints are rules that enforce basic and fundamental information-based constraints.
True
False

Question 16     What type of website is best to build for a website with continually changing information including press releases, new product information, and updated pricing?
Data-driven website
Static website
Relational website
All of the above

Question 17     What is a backward integration?
Takes information entered into a given system and sends it to the application generation component
Takes information entered into a given system and sends it automatically to all downstream systems and processes
Takes information entered into a given system and sends it automatically to all upstream systems and processes
Takes information entered into a given system and sends it to the DBMS

Question 18     Redundancy is the duplication of information, or storing the same information in multiple places.
True
False

Question 19     Which of the following database structures stores information in a tree-like structure that allows repeating information using parent/child relationships, in such a way that it cannot have too many relationships?
Hierarchical database
Network database
Relational database model
All of the above

Question 20     All of the following are advantages of database-stored information, except:
Increased information redundancy
Increased flexibility
Increased information integrity
Increased performance

Question 21     What is a forward integration?
Takes information entered into a given system and sends it automatically to all upstream systems and processes
Takes information entered into a given system and sends it to the DBMS
Takes information entered into a given system and sends it automatically to all downstream systems and processes
Takes information entered into a given system and sends it to the application generation component

Question 22     What is an interactive website kept constantly updated and relevant to the needs of its customers through the use of a database?
Customer-driven database
Data-driven website
Data-driven database
Customer-driven website

Question 23     What is a primary key?
A field (or group of fields) that uniquely identifies a given attribute in a table
A field (or group of fields) that uniquely identifies a given entity in a table
A primary key of one table that appears as an attribute in another table and acts to provide a logical relationship among the two tables
Characteristics or properties of an entity

Question 24     Which of the following measures how quickly a system performs a certain process or transaction?
Scalability
Information integrity
Redundancy
Performance

Question 25     What is a foreign key?
A field (or group of fields) that uniquely identifies a given entity in a table
Characteristics or properties of an entity
A primary key of one table that appears as an attribute in another table and acts to provide a logical relationship among the two tables
A field (or group of fields) that uniquely identifies a given attribute in a table

Question 26     Which of the following database structures offers a flexible way of representing objects and their relationships?
Hierarchical database
Network database
Relational database model
All of the above

Question 27     A central repository does not allow information to be integrated across multiple systems.
True
False

Question 28     One of the advantages found in a relational database is increased information redundancy.
True
False

Question 29     In the relational database model, what is a person, place, thing, transaction, or event about which information is stored?
Physical view
Logical view
Entity
Attribute

Question 30     What are the rules that help ensure the quality of information?
Business-critical integrity constraints
Relational integrity constraints
Information integrity
Integrity constraints

Question 31     Match the term with the appropriate definition.
           
           
1.         Database = Maintains information about various types of objects, events, people, and places
2.         Database Management System (DBMS) = Software through which users and application programs interact with a database
3.         Relational Data Model = A type of database that stores information in the form of logically related two-dimensional tables
4.         Data-driven website = an interactive website kept constantly updated and relevant to the needs of its customers through the use of a database
5.         Integration = Allows separate systems to communicate directly with each other


Chapter 8 – Accessing Organizational Information – Data Warehouse
Question 1       What is information that people use to support their decision-making efforts?
Data mining
Business intelligence
Information cleansing and scrubbing
Data-mining tools

Question 2       Why would a business use a data warehouse that offers strategic level, external, integrated, and historical information?
Identify trends
Make projections
Decide key business issues
All of the above

Question 3       Achieving perfect information is almost impossible. The more complete and accurate an organization wants its information to be, the more it costs. Which two variables are used to determine the trade-off for perfect information?
Accessibility versus completeness
Accessibility versus complexity
Accuracy versus complexity
Accuracy versus completeness

Question 4       When does information cleansing occur in the data warehouse?
During the ETL process
During the ETL process and once it is in the data warehouse
During the ETL process and before it is in the data warehouse
On the information, once it is in the data warehouse

Question 5       Which of the following does not draw a parallel between the challenges in business and the challenges of war?
Discerning patterns and meaning in the information
Responding to the resultant information
Collecting information
Accurate and complete information

Question 6       Information cleansing or scrubbing is the process that weeds out and fixes or discards inconsistent, incorrect, or incomplete information.
True
False

Question 7       Business intelligence (BI) refers to applications and technologies that are used to gather, provide access to, and analyze data and information to support decision-making efforts.
True
False

Question 8       The primary purpose of a data warehouse is to perform transactional processes.
True
False

Question 9       The Data Warehousing Institute estimates that low-quality information costs U.S. businesses $60 billion annually.
True
False

Question 10     What is the primary purpose of a data warehouse?
To disaggregate information throughout an organization into multiple repositories in such a way that employees can make decisions and undertake business analysis activities.
To aggregate information throughout an organization into a single repository in such a way that employees can make decisions and undertake business analysis activities.
To disaggregate information throughout an organization into a single repository in such a way that employees can make decisions and undertake business analysis activities.
To aggregate information throughout an organization into multiple repositories in such a way that employees can make decisions and undertake business analysis activities.

Question 11     Extraction, transformation, and loading is a process that extracts information from internal databases, transforms the information using a common set of enterprise definitions, and loads the information into an external database.
True
False

Question 12     A relational database contains information in a series of two-dimensional tables. How is data contained in a data warehouse and data mart?
Information is multidimensional, meaning it contains layers of columns and rows.
Information is multidimensional, meaning it contains a single layer data in a table format.
Information is two-dimensional, meaning it contains a single layer data in a table format.
Information is two-dimensional, meaning it contains layers of columns and rows.
Question 13     What is data mining?
The process of analyzing data to extract information not offered by the raw data alone
The common term for the representation of multidimensional information
A particular attribute of information
Uses a variety of techniques to find patterns and relationships in large volumes of information and infer rules from them that predict future behavior and guide decision making

Question 14     A dimension is a particular attribute of information. Each layer in a data warehouse or data mart represents information according to an additional dimension. What is the common term for the representation of multidimensional information?
Table
Block
Cube
All of the above

Question 15     Which of the following is one of the principle BI enablers?
Technology, processes, and customer culture
Technology, people, and customer culture
Technology, processes, and corporate culture
Technology, people, and corporate culture

Question 16     Which of the following describes ETL?
A process that transforms information using a common set of enterprise definitions
A process that loads information into a data warehouse
A process that extracts information from internal and external databases
All of the above

Question 17     A cube is the common term for the representation of multidimensional information.
True
False

Question 18     Which of the following is not one of the principal BI enablers?
Corporate processes
Corporate culture
People
Technology

Question 19     All of the following are reasons why operational systems are not appropriate for business analysis, except:
Does not include information from other operational applications
Operational information is mainly current
Operational systems are integrated
Operational information frequently has quality issues

Question 20     Which of the following statements is true?
The more complete and accurate an organization wants to get its information, the more it costs
The more accurate an organization wants to get its information, the less it costs
The less accurate an organization wants to get its information, the more it costs
The more complete an organization wants to get its information, the less it costs

Question 21     A data mart is a company that collects and sells external data for a data warehouse.
True
False

Question 22     A dimension is a particular attribute of information.
True
False

Question 23     The data warehouse is a location for all of a business's information.
True
False

Question 24     Which of the following statements is true regarding customer information?
Customer information can exist in several operational systems
Customer information in each operational system could change
Customer information in each operational system can be different
All of the above

Question 25     What does the Data Warehousing Institute estimate that low-quality information costs U.S. businesses annually?
$600 billion
$6 billion
$5 million
$6 trillion

Question 26     A data warehouse is a _________ collection of information-gathered from many different ___________ databases-that supports business analysis activities and decision-making tasks.
Logical, operational
Physical, transactional
Physical, operational
Logical, transactional

Question 27     With careful planning, 100% complete and accurate information is possible.
True
False

Question 28     Which of the following occurs during data cleansing?
Clean inconsistent information
Clean incorrect information
Clean incomplete information
All of the above

Question 29     What is a dimension?
A particular relational database.
A particular single repository.
A particular attribute of information.
A particular entity of information.

Question 30     Lands' End created an organization wide data warehouse so all its employees could access organizational information. Lands' End soon found out that there could be "too much of a good thing." Many of its employees would not use the data warehouse because it was simply too big, too complicated, and had too much irrelevant information. Lands' End knew there was valuable information in its data warehouse, and it had to find a way for its employees to easily access the information. What was Lands' End solution?
Build a better, more efficient data warehouse
Build a data-driven website
Build a better, more efficient transactional database
Build a data mart

Question 31     Match the following terms with their definition.
1.         Data warehouse - A logical collection of information, gathered from many different operational databases, that supports business analysis activities and decision-making tasks
2.         Data mining - The process of analyzing data to extract information not offered by the raw data alone
3.         ETL- A process that extracts information from internal and external databases, transforms the information, and loads the information into a data warehouse
4.         Business intelligence - Refers to applications and technologies that are used to gather, provide access to, and analyze data and information to support decision-making efforts
5.         Information cleansing or scrubbing - A process that weeds out and fixes or discards inconsistent, incorrect, or incomplete information

Plug-In B18 Business Intelligence
Question 1       Data latency is the time from which data are made available to the time when analysis is complete.
True
False

Question 2       Improving the quality of business decisions has a direct impact on costs and revenue.
True
False

Question 3       Data is a strategic asset for a business and if the asset is not used the business is wasting resources.
True
False

Question 4       Quantifiable benefits, indirectly quantifiable benefits, unpredictable benefits, and intangible benefits are the four primary categories of BI benefits.
True
False

Question 5       The three forms of BI include operational, tactical, and value-added.
True
False

Question 6       Which of the following is the result of BI that the data have been defined in business terms and calculations and algorithms are easily accessed for comprehension?
Understandable
Easily manipulated
Reliable
Consistent

Question 7       What types of BI decisions include forecasting claim amounts and medical coverage costs, classifying the most important elements that affect medical coverage; predicting which customers will buy new insurance policies?
Retail and sales BI decisions
Insurance BI decisions
Banking BI decisions
Operations management BI decisions

Question 8       Which of the following is the result of BI that implies that the data have been documented as the certified or approved data for the enterprise?
Understandable
Consistent
Easily manipulated
Reliable

Question 9       What is decision latency?
The time duration to make data ready for analysis and loading the data into the database
The time from which data are made available to the time when analysis is complete
The time it takes a human to comprehend the analytic results and determine an appropriate action
None of the above

Question 10     Which form of BI uses the time frame of days to weeks to months?
Operational BI
Tactical BI
Strategic BI
All of the above

Question 11     Which of the following is a form of statistical analysis?
Forecasting
Market basket analysis
Cluster analysis
All of the above

Question 12     Which of the following is not one of the parallels between challenges in business and those of war?
Discerning patterns and meaning in the information
Responding to the resultant information
Collecting information
Using tactical business intelligence

Question 13     What is a technique used to divide an information set into mutually exclusive groups such that the members of each group are as close together as possible to one another and the different groups are as far apart as possible?
Intelligent agent
Association detection
Market basket analysis
Cluster analysis

Question 14     What is the primary problem most organizations face today concerning information?
Data poor, information rich
Data rich, information poor
Business intelligence rich, information rich
Business intelligence poor, information rich

Question 15     What reveals the degree to which variables are related and the nature and frequency of these relationships in the information?
Intelligent agent
Market basket analysis
Cluster analysis
Association detection

Question 16     Which type of BI achieves long-term organizational goals?
Operational BI
Tactical BI
Strategic BI
All of the above

Question 17     What types of BI decisions include forecasting levels of bad loans and fraudulent credit card use, credit card spending by new customers, and which kinds of customers will best respond to new loan offers?
Operations management BI decisions
Insurance BI decisions
Retail and sales BI decisions
Banking BI decisions

Question 18     Which of the following is a business benefit of BI?
Single point of access to information for managers only
BI available to financial organizational departments only
Up-to-the minute information for everyone
All of the above

Question 19     What are forecasts?
Predictions made on the basis of time-series information
Time-stamped information collected at a particular frequency
Reveals the degree to which variables are related
All of the above

Question 20     What do organizations using BI ask to find the root causes to problems and provide solutions?
What
When
Where
Why

Question 21     Which of the following is the result of BI that it is no longer required to have a PhD in statistics to get sophisticated analytics delivered to users' fingertips?
Reliable
Consistent
Understandable
Easily manipulated

Question 22     What is analysis latency?
The time duration to make data ready for analysis and loading the data into the database
The time from which data are made available to the time when analysis is complete
The time it takes a human to comprehend the analytic results and determine an appropriate action
None of the above

Question 23     Which of the following represents market basket analysis?
Analyzes website information
Analyzes checkout scanner information
Detects customers' buying behavior
All of the above

Question 24     Which form of BI has managers and analysts as its primary users?
Operational BI
Tactical BI
Strategic BI
All of the above

Question 25     What types of BI decisions include predicting sales, determining correct inventory levels and distribution schedules among outlets, and loss prevention?
Retail and sales BI decisions
Operations management BI decisions
Banking BI decisions
Insurance BI decisions

Question 26     Which type of BI benefits are the results of discoveries made by creative users?
Indirectly quantifiable benefits
Intangible benefits
Quantifiable benefits
Unpredictable benefits

Question 27     What is time-series information?
Analyzes checkout scanner information
Time-stamped information collected at a particular frequency
Reveals the degree to which variables are related
All of the above

Question 28     Which type of BI benefits includes improved communication throughout the enterprise, improved job satisfaction of empowered users, and improved knowledge sharing?
Intangible benefits
Indirectly quantifiable benefits
Unpredictable benefits
Quantifiable benefits

Question 29     Which type of BI conducts short-term analysis to achieve strategic goals?
Operational BI
Tactical BI
Strategic BI
All of the above

Question 30     Which form of BI uses real-time metrics for its data?
Operational BI
Tactical BI
Strategic BI
All of the above

Question 31     Which of the following is the result of BI that the processes that deliver the data to the business community are well documents and there are no surprises such as missing or inaccurate data?
Understandable
Easily manipulated
Reliable
Consistent

Question 32     Which form of BI uses months to years as its time frame?
Operational BI
Tactical BI
Strategic BI
All of the above

Question 33     Which type of BI benefits includes working time saved in producing reports and selling information to suppliers?
Quantifiable benefits
Indirectly quantifiable benefits
Unpredictable benefits
Intangible benefits

Question 34     Which of the following is one of the four main categories of BI benefits?
Directly quantifiable benefits
Predictable benefits
Tangible benefits
Quantifiable benefits

Question 35    
What types of BI decisions include predicting machinery failures and finding key factors that control optimization of manufacturing capacity?
Operations management BI decisions
Banking BI decisions
Retail and sales BI decisions
Insurance BI decisions