Deck 5: Foundations of Business Intelligence: Databases and Information Management

Question 1

A firm's information policy lays out who is responsible for updating and maintaining the information in a database system.

Answer 1

True

Question 2

A grouping of characters into a word,a group of words,or a complete number is called a record.

Answer 2

False

Question 3

OODBMS are slower than relational DBMS.

Answer 3

True

Question 4

Many applications today require databases that can store and retrieve multimedia.

Question 5

A foreign key is a field that links to a separate table.

Question 6

Both Oracle and Microsoft Access use SQL to retrieve information from the database.

Question 7

Predictive analysis is a technique of data mining.

Question 8

OLAP is a key tool of BI.

Question 9

Data cleansing is the same process as data scrubbing.

Question 10

In linking databases to the Web,the role of the application server is to host the DBMS.

Question 11

One of the drawbacks to OODBMS is that they cannot work with applets.

Question 12

DBMS simplify how end users work with databases by separating the logical and physical views of the data.

Question 13

Web mining is the discovery of useful patterns on the Web.

Question 14

Every record in a file should contain at least one key field.

Question 15

Common Gateway Interface is a specification for processing data on a Web server.

Question 16

A data warehouse may include information from legacy systems.

Question 17

A data warehouse is typically comprised of several smaller data marts.

Question 18

Implementing a Web interface for a database requires changes to the database itself.

Question 19

The use of different terms for identifying data in a firm's various information systems is an example of redundant data.

Question 20

OLAP is used to find hidden patterns and relationships in large databases,and infer rules from these to infer future behavior.

Question 21

What are the relationships that the relational database is named for?

A)Relationships between rows and columns
B)Relationships between entities
C)Relationships between fields and records
D)Relationships between databases

Question 22

In a table for customers,the information about a single customer would reside in a single:

A)field.
B)row.
C)column.
D)table.

Question 23

The process of streamlining data to minimize redundancy and awkward many-to-many relationships is called:

A)normalization.
B)data scrubbing.
C)data cleansing.
D)data administration.

Question 24

As per your reading of the chapter opening case,which of the following best describes the challenges faced by Banco de Crédito del Perú (BCP)?

A)BCP's choice of software had led to erroneous data.
B)BCP had too much data being collected.
C)BCP had multiple,redundant,and error-prone sources of data.
D)BCP was collecting data that was not relevant to its new goals.

Question 25

A field identified in a table as holding the unique identifier of the table's records is called the:

A)primary key.
B)key field.
C)primary field.
D)foreign key.

Question 26

A schematic of the entire database that describes the relationships in a database is called a(n):

A)data dictionary.
B)intersection relationship diagram.
C)entity-relationship diagram.
D)data definition diagram.

Question 27

Which of the following best illustrates the relationship between entities and attributes?

A)The entity CUSTOMER with the attribute PRODUCT
B)The entity CUSTOMER with the attribute ADDRESS
C)The entity PRODUCT with the attribute PURCHASE
D)The entity PRODUCT with the attribute CUSTOMER

Question 28

A one-to-many relationship between two entities is symbolized in a diagram by a line that ends:

A)in two short marks.
B)in one short mark.
C)with a crow's foot.
D)with a crow's foot preceded by a short mark.

Question 29

An example of a pre-digital database is a:

A)library's card-catalog.
B)cash register receipt.
C)doctor's office invoice.
D)list of sales totals on a spreadsheet.

Question 30

A table that links two tables that have a many-to-many relationship is often called a(n):

A)derived table.
B)intersection relation.
C)foreign table.
D)entity-relationship table.

Question 31

Which of the following is not a typical feature of DBMS?

A)Data manipulation language
B)Report generation tools
C)Data dictionary
D)Query wizard tool

Question 32

The most basic business database is comprised of:

A)three tables: for customers,suppliers and parts,and sales.
B)four tables: for customers,suppliers,parts,and sales.
C)four tables: for customers,employees,suppliers and parts,and sales.
D)five tables: for customers,employees,suppliers,products,and sales.

Question 33

A field identified in a record as holding the unique identifier for that record is called the:

A)primary key.
B)key field.
C)primary field.
D)foreign key.

Question 34

What is the first step you should take in managing data for a firm?

A)Identify the data needed to run the business
B)Cleanse the data before importing it to any database
C)Normalize the data before importing to a database
D)Audit your data quality

Question 35

A characteristic or quality describing an entity is called a(n):

A)field.
B)tuple.
C)key field.
D)attribute.

Question 36

In a relational database,a record is also called a(n):

A)tuple.
B)row.
C)entity.
D)field.

Question 37

The logical view of a database:

A)shows how data are organized and structured on the storage media.
B)presents an entry screen to the user.
C)allows the creation of supplementary reports.
D)presents data as they would be perceived by end users.

Question 38

A one-to-one relationship between two entities is symbolized in a diagram by a line that ends:

A)in two short marks.
B)in one short mark.
C)with a crow's foot.
D)with a crow's foot topped by a short mark.

Question 39

A DBMS makes the:

A)physical database available for different logical views.
B)logical database available for different analytical views.
C)physical database available for different relational views.
D)relational database available for different physical views.

Question 40

The type of logical database model that treats data as if they were stored in two dimensional tables is the:

A)OODBMS.
B)pre-digital DBMS.
C)relational DBMS.
D)hierarchical DBMS.

Question 41

As per your reading of the chapter case,what primary benefit of using data mining technology is driving more accurate and precise marketing by large companies such as Forbes and Eastman Kodak?

A)Finding out which of their marketing techniques works best
B)Ability to gather real-time data on customers
C)Ability to gather more data than previously
D)A more realistic understanding of their customers

Question 42

MySQL is a:

A)DBMS for small handheld computing devices.
B)popular open-source DBMS.
C)mainframe relational DBMS.
D)DBMS for desktop systems.

Question 43

The select operation:

A)combines relational tables to provide the user with more information than is otherwise available.
B)creates a subset consisting of columns in a table.
C)identifies the table from which the columns will be selected.
D)creates a subset consisting of all records in the file that meets stated criteria.

Question 44

DBMS typically include report-generating tools in order to:

A)retrieve and display data.
B)display data in an easier-to-read format.
C)display data in graphs.
D)perform predictive analysis.

Question 45

The most prominent data manipulation language today is:

A)Access.
B)DB2.
C)SQL.
D)Crystal Reports.

Question 46

A data mart usually can be constructed more rapidly and at lower cost than a data warehouse because:

A)it typically focuses on a single subject area or line of business.
B)all the information is historical.
C)it uses a Web interface.
D)all of the information belongs to a single company.

Question 47

Which of the following statements about data warehouses is not true?

A)They store supply data to be used across the enterprise for management analysis and decision making.
B)Data warehouse systems provide a range of ad hoc and standardized query tools,analytical tools,and graphical reporting facilities.
C)They may include data from Web site transactions.
D)Data warehouse systems provide easy-to-use tools for managers to easily update data.

Question 48

The project operation:

A)combines relational tables to provide the user with more information than is otherwise available.
B)creates a subset consisting of columns in a table.
C)organizes elements into segments.
D)identifies the table from which the columns will be selected.

Question 49

The join operation:

A)combines relational tables to provide the user with more information than is otherwise available.
B)identifies the table from which the columns will be selected.
C)creates a subset consisting of columns in a table.
D)organizes elements into segments.

Question 50

An automated or manual file that stores information about data elements and data characteristics such as usage,physical representation,ownership,authorization,and security is the:

A)data dictionary.
B)data definition diagram.
C)entity-relationship diagram.
D)relationship dictionary.

Question 51

In clustering,a data mining tool will:

A)find new groupings within data.
B)find related predictions from existing values.
C)find several events grouped by time.
D)find new associations.

Question 52

Access is a:

A)DBMS for small handheld computing devices.
B)popular open-source DBMS.
C)DBMS for midrange computers.
D)DBMS for desktop systems.

Question 53

Which of the following best describes the importance of creating an accurate data model for your business's database?

A)It is not essential,as the data model itself is modified by the database continuously.
B)Critical,as without one,your data may be inaccurate,incomplete,or difficult to retrieve.
C)Essential,as table relationships cannot be created without an accurate data model.
D)Somewhat important,as the type of data model will define what kinds of data will be stored.

Question 54

The tool that enables users to view the same data in different ways using multiple dimensions is:

A)predictive analysis.
B)SQL.
C)OLAP.
D)data mining.

Question 55

You are working in the IT department of a small paper supply company and planning a new database that monitors employee benefits and productivity.What would be the relationship you need to establish between Employee_ID in the Employee table and Parking_spot_number in the Perks table?

A)one-to-many
B)one-to-one
C)many-to-many
D)many-to-one

Question 56

Data mining is more ________ than OLAP.

A)data focused
B)multidimensional
C)query oriented
D)discovery driven

Question 57

Tools for consolidating,analyzing,and providing access to vast amounts of data to help users make better business decisions are known as:

A)DSS.
B)business intelligence.
C)OLAP.
D)data mining.

Question 58

In a relational database,the three basic operations used to develop useful sets of data are:

A)select,project,and where.
B)select,join,and where.
C)select,project,and join.
D)select,from,and join.

Question 59

Which of the following database types is useful for storing Java applets as well as handling large numbers of transactions?

A)Relational DBMS
B)Hierarchical DBMS
C)Object-relational DBMS
D)OODBMS

Question 60

What is the purpose of a DBMS's data definition function?

A)Storing and managing the data in the database
B)Storing definitions of data elements
C)Normalizing the database
D)Structuring the database

Question 61

A data ________ stores current and historical data of potential interest to decision makers throughout the company.

A)warehouse
B)mart
C)archive
D)mine

Question 62

A physical view shows data as it is organized on the storage media.

Question 63

A DBMS is special software for creating,storing,organizing,and accessing data from a database.

Question 64

A(n)________ is a dedicated computer in a client/server environment that hosts a DBMS.

A)web server
B)application server
C)database server
D)client server

Question 65

Data mining is a tool for allowing users to:

A)quickly compare transaction data gathered over many years.
B)find hidden relationships in data.
C)obtain online answers to ad hoc questions in a rapid amount of time.
D)summarize massive amounts of data into much smaller,traditional reports.

Question 66

Relational database systems use ________ to ensure that relationships between coupled tables remain consistent.

A)intersection relations
B)referential integrity rules
C)entity-relationship diagrams
D)foreign keys

Question 67

Detecting and correcting data in a database or file that are incorrect,incomplete,improperly formatted,or redundant is called:

A)data auditing.
B)defragmentation
C)data scrubbing.
D)data optimization.

Question 68

Which of the following would you use to find out which Web sites with content related to database design were the most often linked to by other Web sites?

A)Web usage mining
B)Web server mining
C)Web structure mining
D)Web content mining

Question 69

OLAP is a tool for enabling:

A)users to obtain online answers to ad hoc questions in a rapid amount of time.
B)users to view both logical and physical views of data.
C)programmers to quickly diagram data relationships.
D)programmers to normalize data.

Question 70

In terms of the data relationships found by data mining,sequences refers to:

A)events linked over time.
B)patterns that describe a group to which an item belongs.
C)occurrences linked to a single event.
D)undiscovered groupings.

Question 71

Within a corporate information services department,the task of creating the physical database and its logical relations are responsibilities of the ________ function.

A)database administration
B)data administration
C)server administration
D)data modeling

Question 72

Which of the following would you use to find patterns in user interaction data recorded by Web servers?

A)Web usage mining
B)Web server mining
C)Web structure mining
D)Web content mining

Question 73

________ is an approach to data management that stores both data and procedures acting on the data as objects that can be automatically retrieved and shared.

A)Referential integrity
B)Normalization
C)An object-oriented DBMS
D)Entity-relationship modelling

Question 74

In terms of the data relationships found by data mining,associations refers to:

A)events linked over time.
B)patterns that describe a group to which an item belongs.
C)occurrences linked to a single event.
D)undiscovered groupings.

Question 75

Businesses use ________ tools to search and analyze unstructured data sets,such as e-mails and memos.

A)OODBMS
B)Web mining
C)text mining
D)OLAP

Question 76

End users use a data manipulation language to manipulate data in the database.

Question 77

Data administration is a special organizational function that manages the policies and procedures through which data can be managed as an organizational resource.

Question 78

An information policy specifies the procedures and rules for defining the structure and content of corporate databases.

Question 79

A(n)________ is a structured survey of the accuracy and level of completeness of the data in an information system.

A)data quality audit
B)systems analysis
C)systems audit
D)data analysis

Question 80

The confusion created by ________ makes it difficult for companies to create customer relationship management,supply chain management,or enterprise systems that integrate data from different sources.

A)batch processing
B)data redundancy
C)data independence
D)online processing