Deck 6: Foundations of Business Intelligence: Databases and Information Management

Question 1

________ creates confusion that hampers the creation of information systems that integrate data from different sources.

A)Batch processing
B)Data redundancy
C)Data independence
D)Online processing
E)Data quality

Answer 1

B

Question 2

A(n)________ represent data as two-dimensional tables.

A)non-relational DBMS
B)mobile DBMS
C)relational DBMS
D)hierarchical DBMS
E)object-oriented DBMS

Answer 2

C

Question 3

List at least three conditions that contribute to data redundancy and inconsistency.

Answer 3

Data redundancy occurs when different divisions,functional areas,and groups in an organization independently collect the same piece of information.Because it is collected and maintained in so many different places,the same data item may have:
1.different meanings in different parts of the organization,
2.different names may be used for the same item,and
3.different descriptions for the same condition.
In addition,the fields into which the data is gathered may have different field names,different attributes,or different constraints.

Question 4

The logical view of a database:

A)displays the organization and structure of data on the physical storage media.
B)includes a digital dashboard.
C)allows the creation of supplementary reports.
D)enables users to manipulate the logical structure of the database.
E)presents data as they would be perceived by end users.

Question 5

Microsoft SQL Server is a(n):

A)DBMS for both desktops and mobile devices.
B)Internet DBMS.
C)desktop relational DBMS.
D)DBMS for midrange computers.
E)DBMS for mobile devices.

Question 6

The fact that a traditional file system cannot respond to unanticipated information requirements in a timely fashion is an example of which of the following issues with traditional file systems?

A)Program-data dependence
B)Lack of flexibility
C)Poor security
D)Lack of data sharing
E)Data redundancy

Question 7

Data ________ occurs when the same data is duplicated in multiple files of a database.

A)redundancy
B)repetition
C)independence
D)partitions
E)discrepancy

Question 8

A ________ is an example of pre-digital data storage that is comparable to a database.

A)library card catalog
B)cash register receipt
C)doctor's office invoice
D)list of sales totals on a spreadsheet
E)schedule of due dates on a project outline

Question 9

A record is a characteristic or quality used to describe a particular entity.

Question 10

You have been asked to design a new contracts database for a small publishing company.What fields do you anticipate needing? Which of these fields might be in use in other databases used by the company?

Question 11

Program-data dependence refers to the coupling of data stored in files and the specific programs required to update and maintain those files such that changes in programs require changes to the data.

Question 12

Which of the following enables a DBMS to reduce data redundancy and inconsistency?

A)Ability to enforce referential integrity
B)Ability to couple program and data
C)Use of a data dictionary
D)Ability to create two-dimensional tables
E)Ability to minimize isolated files with repeated data

Question 13

A DBMS makes the:

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

Question 14

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

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

Question 15

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 PURCHASE
C)The entity PRODUCT with the attribute PURCHASE
D)The entity PRODUCT with the attribute CUSTOMER
E)The entity PURCHASE with the attribute CUSTOMER

Question 16

All of the following are issues with the traditional file environment except:

A)data inconsistency.
B)inability to develop specialized applications for functional areas.
C)lack of flexibility in creating ad-hoc reports.
D)poor security.
E)data sharing.

Question 17

Which of the following is a grouping of characters into a word,a group of words,or a complete number?

A)File
B)Table
C)Entity
D)Field
E)Tuple

Question 18

A characteristic or quality that describes a particular database entity is called a(n):

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

Question 19

Which of the following is a DBMS for desktop computers?

A)DB2
B)Oracle Database
C)Microsoft SQL Server
D)Microsoft Access
E)Microsoft Exchange

Question 20

Which of the following occurs when the same attribute in related data files has different values?

A)Data redundancy
B)Data duplication
C)Data dependence
D)Data discrepancy
E)Data inconsistency

Question 21

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.
E)creates a subset consisting of rows in a table.

Question 22

You are creating a database to store temperature and wind data from various airports.Which of the following fields is the most likely candidate to use as the basis for a primary key in the Airport table?

A)Address
B)City
C)Airport code
D)State
E)Day

Question 23

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)unique ID.
E)key attribute.

Question 24

DBMSs 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.
E)analyze the database's performance.

Question 25

Which of the following is the most prominent data manipulation language today?

A)Access
B)DB2
C)SQL
D)Crystal Reports
E)NoSQL

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.
E)data analysis table.

Question 27

In a relational database,a record is referred to in technical terms as a(n):

A)tuple.
B)table.
C)entity.
D)field.
E)key.

Question 28

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

Question 29

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 meet stated criteria.
E)creates a subset consisting of rows in a table.

Question 30

Which of the following is a specialized language that programmers use to add and change data in the database?

A)Data access language
B)Data manipulation language
C)Structured query language
D)Data definition language
E)DBMS

Question 31

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)where,from,and join.
E)where,find,and select.

Question 32

Which of the following is an automated or manual file that stores information about data elements and data characteristics such as usage,physical representation,ownership,authorization,and security?

A)Data dictionary
B)Data definition diagram
C)Entity-relationship diagram
D)Relationship dictionary
E)Data table

Question 33

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)unique ID.
E)primary entity.

Question 34

NoSQL technologies are used to manage sets of data that don't require the flexibility of tables and relations.

Question 35

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.
E)with a crow's foot topped by two short marks.

Question 36

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.
E)creates a subset consisting of rows in a table.

Question 37

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 defining.
E)optimization.

Question 38

The logical and physical views of data are separated in a DBMS.

Question 39

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

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

Question 40

Microsoft Access's data dictionary displays all of the following information about a field except the:

A)size of the field.
B)format of the field.
C)description of the field.
D)type of the field.
E)the organization within the organization that is responsible for maintaining the data.

Question 41

Identify and describe three basic operations used to extract useful sets of data from a relational database.

Question 42

CGI is a DBMS programming language that end users and programmers use to manipulate data in the database.

Question 43

Which of the following tools enables users to view the same data in different ways using multiple dimensions?

A)Predictive analysis
B)SQL
C)OLAP
D)Data mining
E)Hadoop

Question 44

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

Question 45

DBMS have a data definition capability to specify the structure of the content of the database.

Question 46

You work for a retail clothing chain whose primary outlets are in shopping malls and are conducting an analysis of your customers and their preferences.You wish to find out if there are any particular activities that your customers engage in,or the types of purchases made in the month before or after purchasing select items from your store.To do this,you will want to use the data mining software you are using to do which of the following?

A)Identify associations
B)Identify clusters
C)Identify sequences
D)Classify data
E)Create a forecast

Question 47

A household appliances manufacturer has hired you to help analyze its social media datasets to determine which of its refrigerators are seen as the most reliable.Which of the following tools would you use to analyze this data?

A)Text mining tools
B)Sentiment analysis software
C)Web mining technologies
D)Data mining software
E)Data governance software

Question 48

In the context of data relationships,the term 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.
E)relationships between different customers.

Question 49

The term big data refers to all of the following except:

A)datasets with fewer than a billion records.
B)datasets with unstructured data.
C)machine-generated data (i.e.from sensors).
D)data created by social media (i.e.tweets,Facebook Likes).
E)data from Web traffic.

Question 50

OLAP enables:

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.
E)users to quickly generate summary reports.

Question 51

Which of the following is not one of the techniques used in web mining?

A)Content mining
B)Structure mining
C)Server mining
D)Usage mining
E)Data mining

Question 52

Relational DBMSs use key field rules to ensure that relationships between coupled tables remain consistent.

Question 53

A data warehouse is composed of:

A)historical data from legacy systems.
B)current data.
C)internal and external data sources.
D)historic and current internal data.
E)historic external data.

Question 54

Data mining allows 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.
E)access the vast amounts of data in a data warehouse.

Question 55

The small publishing company you work for wants to create a new database for storing information about all of their author contracts.What factors will influence how you design the database?

Question 56

Which of the following technologies would you use to analyze the social media data collected by a major online retailer?

A)OLAP
B)Data warehouse
C)Data mart
D)Hadoop
E)DBMS

Question 57

You work for a car rental agency and want to determine what characteristics are shared among your most loyal customers.To do this,you will want to use the data mining software you are using to do which of the following?

A)Identify associations
B)Identify clusters
C)Identify sequences
D)Classify data
E)Create a forecast

Question 58

Complicated groupings of data in a relational database need to be adjusted to eliminate awkward many-to-many relationships.

Question 59

List and describe three main capabilities or tools of a DBMS.

Question 60

All of the following are technologies used to analyze and manage big data except:

A)cloud computing.
B)noSQL.
C)in-memory computing.
D)analytic platforms.
E)Hadoop.

Question 61

In a client/server environment,a DBMS is located on a dedicated computer called a web server.

Question 62

You can use OLAP to perform multidimensional data analysis.

Question 63

MongoDB and SimpleDB are both examples of:

A)open source databases.
B)SQL databases.
C)NoSQL databases.
D)cloud databases.
E)big data databases.

Question 64

OLAP is unable to manage and handle queries with very large sets of data.

Question 65

Implementing a web interface for an organization's internal database usually requires substantial changes to be made to the database.

Question 66

In data mining,which of the following involves events linked over time?

A)Associations
B)Sequences
C)Classifications
D)Clustering
E)Forecasting

Question 67

In data mining,which of the following involves recognizing patterns that describe the group to which an item belongs by examining existing items and inferring a set of rules?

A)Associations
B)Sequences
C)Classifications
D)Clustering
E)Forecasting

Question 68

Which of the following would you use to find patterns in user interaction data recorded by a web server?

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

Question 69

Middleware is an application that transfers information from an organization's internal database to a web server for delivery to a user as part of a web page.

Question 70

Multiple data marts are combined and streamlined to create a data warehouse.

Question 71

In-memory computing relies primarily on a computer (RAM)for data storage.

Question 72

Which of the following is software that handles all application operations between browser-based computers and a company's back-end business applications or databases?

A)Database server software
B)Application server software
C)Web browser software
D)Data mining software
E)Web server software

Question 73

You can use text mining tools to analyze unstructured data,such as memos and legal cases.

Question 74

Associations are occurrences linked to multiple events.

Question 75

In data mining,which of the following involves using a series of existing values to determine what other future values will be?

A)Associations
B)Sequences
C)Classifications
D)Clustering
E)Forecasting

Question 76

________ tools are used to analyze large unstructured data sets,such as e-mail,memos,and survey responses to discover patterns and relationships.

A)OLAP
B)Text mining
C)In-memory
D)Clustering
E)Classification

Question 77

Legacy systems are used to populate and update data warehouses.

Question 78

You can manipulate data on a web server by using a CGI script.

Question 79

Which of the following enables you to create a script that allows a web server to communicate with a back-end database?

A)CGI
B)HTML
C)Java
D)SQL
E)NoSQL

Question 80

HTML has become the preferred method of communicating with back-end databases because it is a cross-platform language.