Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
Chapter 6 Databases and Information Management
1) A grouping of characters into a word, a group of words, or a complete number is called a
record.
2) Each characteristic or quality describing a particular entity is called an attribute.
3) Program-data dependence refers to the coupling of data stored in files and software
programs that use this data such that changes in programs require changes to the data.
4) A DBMS separates the logical and physical views of data.
5) Every record in a file should contain at least one key field.
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
6) NoSQL technologies are used to manage sets of data that don’t require the flexibility of
tables and relations.
7) Data governance deals with the policies and processes for managing the integrity and
security of data in a firm.
8) Because HTML was designed as a cross-platform language, it is the preferred method of
communicating with back-end databases.
9) A data dictionary is a language associated with a database management system that end
users and programmers use to manipulate data in the database.
10) In a relational database, complex groupings of data must be streamlined to eliminate
awkward many-to-many relationships.
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
11) A data warehouse may be updated by a legacy system.
12) A data warehouse is typically comprised of several smaller data marts.
13) OLAP is used for multidimensional data analysis.
14) OLAP enables users to obtain online answers to ad-hoc questions in a fairly rapid amount of
time, except when the data are stored in very large databases.
15) With in-memory computing, a computer’s primary memory (RAM) is used for processing.
16) In a Web-based database, middleware is used to transfer information from the organization’s
internal database back to the Web server for delivery in the form of a Web page to the user.
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
17) The disadvantage of using a Web interface for a database is that it typically requires
substantial changes to the internal database.
18) Common Gateway Interface is a specification for processing data on a Web server.
19) Data administration is a special organizational function that manages the policies and
procedures through which data can be managed as an organizational resource.
20) Data cleansing is the same process as data scrubbing.
21) An effective information system provides users with accurate, timely, and irrelevant
information.
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
22) Program-data dependence wastes storage resources and also leads to data
inconsistency where the same attribute may have different values.
23) A traditional file system can deliver routine scheduled reports after extensive
programming efforts, but it cannot deliver ad hoc reports or respond to unanticipated
information requirements in a timely fashion.
24) A database is a collection of data organized to serve many applications efficiently by
centralizing the data and controlling redundant data.
25) The most popular type of DBMS today for PCs as well as for larger computers and
mainframes is the rational DBMS.
26) Up until about five years ago, most data collected by organizations consisted of
transaction data that could easily fit into rows and columns of relational database
management systems.
27) Big data does not refer to any specific quantity but usually refers to data in the petabyte and
exabyte range—in other words, billions to trillions of records, all from different sources.
28) A data mart is a database that stores current and historical data of potential interest to
decision makers throughout the company.
29) 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
30) Which of the following is not one of the main problems with a traditional file environment?
A) data inconsistency
B) program-data independence
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
C) lack of flexibility in creating ad-hoc reports
D) poor security
31) A DBMS reduces data redundancy and inconsistency by
A) enforcing referential integrity.
B) uncoupling program and data.
C) utilizing a data dictionary.
D) minimizing isolated files with repeated data.
32) A characteristic or quality describing an entity is called a(n)
A) field.
B) tuple.
C) key field.
D) attribute.
33) 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
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
34) Duplicate data in multiple data files is called data ________.
A) redundancy
B) repetition
C) independence
D) partitions
35) 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 analytical views.
D) logical database available for different physical views.
36) The logical view
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.
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
37) DBMS for midrange computers include all of the following except
A) DB2.
B) Oracle.
C) Microsoft SQL Server.
D) Microsoft Access.
38) The type of logical database model that treats data as if they were stored in two-dimensional
tables is the
A) non-relational DBMS.
B) mobile DBMS.
C) relational DBMS.
D) hierarchical DBMS.
39) Oracle Database Lite is a(n)
A) DBMS for small handheld computing devices.
B) Internet DBMS.
C) mainframe relational DBMS.
D) DBMS for midrange computers.
40) Microsoft SQL Server is a(n)
A) DBMS for small handheld computing devices.
B) Internet DBMS.
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
C) desktop relational DBMS.
D) DBMS for midrange computers.
41) In a table for customers, the information about a single customer would reside in a single
A) field.
B) row.
C) column.
D) table.
42) In a relational database, a record is referred to in technical terms as a(n)
A) tuple.
B) row.
C) entity.
D) field.
43) 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.
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
44) 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.
45) 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.
46) 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.
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
47) 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.
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.
49) Big data does not refer to
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).
50) 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
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
C) data mart
D) Hadoop
51) The data dictionary serves as an important data management tool by
A) assigning attributes to the data.
B) creating an inventory of the data elements contained in the database.
C) presenting data as end users or business specialists would perceive them.
D) maintaining data in updated form.
52) 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.
53) The specialized language programmers use to add and change data in the database is called
A) a data access language.
B) a data manipulation language.
C) structured query language.
D) a data definition language.
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
54) The most prominent data manipulation language today is
A) Access.
B) DB2.
C) SQL.
D) Crystal Reports.
55) 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.
56) 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.
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
57) 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.
58) A one-to-one relationship between two entities is symbolized in a diagram by a line that
ends with
A) two short marks.
B) one short mark.
C) a crow’s foot.
D) a crow’s foot topped by a short mark.
59) Which of the following is not one of the techniques used in Web mining?
A) Knowledge mining
B) structure mining
C) server mining
D) user mining
60) You work for a retail clothing chain whose primary outlets are in shopping malls, and you
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
Laudon/Laudon/Brabston, Management Information Systems, Seventh Canadian Edition
made in the month before or after purchasing select items from your store. To do this, you
will want to use data mining software that is capable of
A) identifying associations.
B) identifying clusters.
C) identifying sequences.
D) classification.
61) You work for a national car rental agency and want to determine what characteristics are
shared among your most loyal customers. To do this, you will want to use data mining
software that is capable of
A) identifying associations.
B) identifying clusters.
C) identifying sequences.
D) classification.
62) 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.
63) All of the following are technologies used to analyze and manage big data except
A) cloud computing.
B) noSQL.