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Information Systems-Chapter 6
Chapter 6
80
Other
Undergraduate 3
03/01/2016

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Cards

Term

 

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

(true/false)

Definition
TRUE
Term

 

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

(true/false)

Definition
FALSE
Term

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

(true/false)

Definition
TRUE
Term

 

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

(true/false)

Definition
TRUE
Term

 

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

(true/false)

Definition
TRUE
Term

Most back-end databases are able to interpret HTML commands.

(true/false)

Definition
FALSE
Term

 

Hadoop can process large quantities of any type of data, including video and Twitter feeds.

(true/false)

Definition
TRUE
Term

 

The two key services of Hadoop are HDFS and in-memory computing.

(true/false)

Definition
FALSE
Term

A data warehouse may include information from legacy systems.

(true/false)

Definition
TRUE
Term

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

(true/false)

Definition
FALSE
Term

 

OLAP is a key tool of BI.

(true/false)

Definition
TRUE
Term

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

(true/false)

Definition
FALSE
Term

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

(true/false)

Definition
TRUE
Term

In-memory computing relies on a computer's main memory for storing data.

(true/false)

Definition
TRUE
Term

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

(true/false)

Definition
FALSE
Term

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

(true/false)

Definition
TRUE
Term

 

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

(true/false)

Definition
FALSE
Term

 

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

(true/false)

Definition
TRUE
Term

 

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

(true/false)

Definition
FALSE
Term

Data cleansing is the same process as data scrubbing.

(true/false)

Definition
TRUE
Term

 

MongoDB and SimpleDB are both examples of:

 

A) Open-source databases.

 

B) SQL databases.

 

C) NoSQL databases.

 

D) Cloud databases.

 

Definition
NoSQL databases
Term

 

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.

 

Definition
library's card-catalog
Term

 

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

 

Definition
identify the data needed to run the business
Term

 

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

 

Definition
B) The entity CUSTOMER with the attribute ADDRESS
Term

 

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

 

A) two-tiered DBMS.

 

B) pre-digital DBMS.

 

C) relational DBMS.

D) hierarchical DBMS

Definition
relational DBMS
Term

 

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

 

Definition
relationships between entities
Term

 

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

 

A) field.

 

B) tuple.

 

C) key field.

 

D) attribute.

 

Definition
attribute
Term

 

The most basic business database is comprised of:

 

A) three tables: for suppliers, parts, and sales.

 

B) four tables: for customers, suppliers, parts, and sales.

 

C) four tables: for customers, suppliers, sales, and employees.

 

D) five tables: for customers, employees, suppliers, parts, and sales.

 

Definition
D) five tables: for customers, employees, suppliers, parts, and sales
Term

 

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

 

A) field.

 

B) row.

 

C) column.

 

D) table.

 

Definition
row
Term

 

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

 

A) tuple.

 

B) row.

 

C) entity.

 

D) field.

 

Definition
tuple
Term

 

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.

 

Definition
primary key
Term

 

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.

 

Definition
key field
Term

 

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.

 

Definition
enitity-relationship diagram
Term

 

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.

 

Definition
in two short marks
Term

 

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.

 

Definition
with a crows foot preceded by a short mark
Term

 

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.

 

Definition
intersection relation
Term

 

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.

 

Definition
normalization
Term

 

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.

 

Definition
A) physical database available for different logical views.
Term

 

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

Definition
D) presents data as they would be perceived by end users
Term

 

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

 

Definition
query wizard tool
Term

 

Access is a:

 

A) DBMS for small handheld computing devices.

 

B) popular open-source DBMS.

 

C) DBMS for midrange computers.

 

D) DBMS for desktop PC systems.

 

Definition
DBMS for desktop PC systems
Term

 

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.

 

Definition
find new groupings within data
Term

 

MySQL is a:

 

A) DBMS for small handheld computing devices.

 

B) popular open-source DBMS.

 

C) mainframe relational DBMS.

 

D) DBMS for desktop systems.

 

Definition
popular open-source DBMS
Term

 

Data mining is more ________ than OLAP.

 

A) data focused

 

B) multidimensional

 

C) query oriented

D) discovery driven

Definition
discovery driven
Term

 

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.

 

Definition
select, project, and join
Term

 

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.

 

Definition
D) creates a subset consisting of all records in the file that meet stated criteria.
Term

 

All of the following are tools or technologies for extracting information from unstructured data sets except:

 

A) sentiment analysis software.

 

B) SQL queries.

 

C) Hadoop.

 

D) Non-relational DBMS.

 

Definition
SQL queries
Term

 

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.

 

Definition
B) creates a subset consisting of columns in a table.
Term

 

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

 

Definition
B) Critical, as without one, your data may be inaccurate, incomplete, or difficult to retrieve
Term

 

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

Definition
data dictionary
Term

 

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

 

Definition
one-to-one
Term

 

The most prominent data manipulation language today is:

 

A) Access.

 

B) DB2.

 

C) SQL.

 

D) Crystal Reports.

 

Definition
SQL
Term

 

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.

 

Definition
display data in an easier-to-read format
Term

 

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

 

Definition
structuring the database
Term

 

Which of the following database types would be best suited for storing multimedia?

 

A) SQL DBMS

 

B) Open-source DBMS

 

C) Non-relational DBMS

 

D) Cloud-based database

 

Definition
non-relational DBMS
Term

 

Pre-configured hardware-software systems that use both relational and non-relational technology optimized for analyzing large datasets are referred to as:

 

A) Hybrid DBMS.

 

B) Hadoop.

 

C) BI.

 

D) Analytic platforms.

 

Definition
analytic platforms
Term

 

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.

 

Definition
Data warehouse systems provide easy-to-use tools for managers to easily update data.
Term

 

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.

 

Definition
it typically focuses on a single subject area or line of business.
Term

 

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.

 

Definition
business intelligence
Term

 

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

 

A) Hadoop.

 

B) SQL.

 

C) OLAP.

 

D) data mining.

 

Definition
OLAP
Term

 

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.

 

Definition
users to obtain online answers to ad hoc questions in a rapid amount of time
Term

 

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

Definition
find hidden relationships in data
Term

 

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.

 

Definition
occurrences linked to a single event
Term

 

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.

 

Definition
events linked over time
Term

 

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

 

Definition
web usage mining
Term

 

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

 

Definition
web structure mining
Term

 

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

 

Definition
database administration
Term

 

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

 

A) Hadoop

 

B) Web mining

 

C) text mining

 

D) OLAP

 

Definition
text mining
Term

 

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

Definition
data redundancy
Term

 

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.

 

Definition
data scrubbing
Term

 

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

 

Definition
referential integrity rules
Term

 

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

(true/false)

Definition
TRUE
Term

 

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

(true/false)

Definition
TRUE
Term

 

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

(true/false)

Definition
TRUE
Term

 

Hadoop is a(n):

 

A) NoSQL database technology that stores both data and procedures acting on the data as objects.

 

B) data mining platform designed for storing and analyzing big data produced by Web communications and transactions.

 

C) open-source software framework designed for distributing data-processing over inexpensive computers.

 

D) pre-configured hardware-software system designed for analyzing big data.

 

Definition
C) open-source software framework designed for distributing data-processing over inexpensive computers.
Term

 

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

 

A) warehouse

 

B) mart

 

C) archive

 

D) mine

 

Definition
warehouse
Term

 

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

 

Definition
database server
Term

 

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

(true/false)

Definition
FALSE
Term

 

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

(true/false)

Definition
TRUE
Term

 

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

 

Definition
data quality audit
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