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a grouping of characteristics into a word, a group of words is called a record.
true
each characteristic or quality describing a particular entity is called an attribute
true
program-data dependence refers to the coupling on data stored in files and software programs that use this data such that changes in programs require changes to the data
true
a DBMS separates the logical and physical views of data.
true
every record in a file should contain at least one key field
true
many applications today require database that can store and retrieve multimedia
true
one of the drawbacks to OODBMS are that they cannot work with applets.
false
OODBMS are slower than DBMS
true
a data dictionary is a language as associated with a database management system that end users and programmers use to manipulate data in the database
false
in relational database, complex groupings of data must be streamlined to eliminate awkward many-to-many relationships
true
a data warehouse may be updated by a legacy system
true
a data warehouse is typically comprised of several smaller data marts
false
OLAP is a key tool of BI
true
OPLAP enables users to obtain answers to ad-hoc questions in a fairly rapid amount of time, except when the data are store in a very large database.
false
predictive analysis is synonymous with data mining
false
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.
true
the disadvantage of using a web interface for a database is that it typically requires substantial changes to the internal database.
false
common gateway interface is specification for processing data on a web server
true
data administration is a special organizational function that manages the policies and procedures through which data can be managed as an organizational resource.
true
data cleansing is the same process as data scrubbing
true
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
B) the entity customer and the attribute purchase
Which of the following is not one of the main problems with a traditional file environment?
A) data inconsistency
B) program-data independence
C) lack of flexibility in creating ad-hoc reports
D) poor security
B) Program-data independence
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.
D) minimizing isolated files with repeated data.
A characteristic or quality describing an entity is called a(n)
A) field.
B) tuple.
C) key field.
D) attribute
D) attribute
Which of the following non-digital data storage items is most similar to a database?
A) library card catalog
B) cash register receipt
C) doctor's office invoice
D) list of sales totals on a spreadsheet
A) library card catalog
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
B) Data redundancy
duplicate data in multiple data files is called data ________.

A) redundancy
B) repetition
C) independence
D) partitions
A) redundancy
28) 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.
A) physical database available for different logical views.
29) 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.
D) presents data as they would be perceived by end users.
30) DBMS for midrange computers include all of the following EXCEPT
A) DB2.
B) Oracle.
C) Microsoft SQL Server.
D) Microsoft Access.
D) Microsoft Access
31) 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.
C) relational DBMS
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.
A) DBMS for small handheld computing devices.
Microsoft SQL Server is a(n)
A) DBMS for small handheld computing devices.
B) Internet DBMS.
C) desktop relational DBMS.
D) DBMS for midrange computers.
D) DBMS for mid range computers
In a table for customers, the information about a single customer would reside in a single
A) field.
B) row.
C) column.
D) table.
B) row
In a relational database, a record is referred to in technical terms as a(n)
A) tuple.
B) row.
C) entity.
D) field.
A) tuple
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.
A) primary key
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.
B) key field
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.
C) Select, project, and join
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
.
D) creates a subset consisting of all records in the file that meet state criteria
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.
A) combines relational tables to provide the user with more information than is otherwise available.
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.
B) creates a subset consisting of columns in a table.
You are creating a video and animation sharing Web site whose content will be supplied by content, video, and applets stored in a database and you anticipate very high loads on the server. Which of the following DBMSs will most likely serve your needs?
A) object-relational DBMS
B) relational DBMS
C) hierarchical DBMS
D) OODBMS
A) object-relational DBMS
The type of database management approach that can handle multimedia is the
A) hierarchical DBMS.
B) relational DBMS.
C) network DBMS.
D) object-oriented DBMS.
D) object-oriented DBMS.
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.
B) creating an inventory of the data elements contained in the database.
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.
A) data dictionary.
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.
B) a data manipulation language.
The most prominent data manipulation language today is
A) Access.
B) DB2.
C) SQL.
D) Crystal Reports.
C) SQL.
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.
display data in an easier-to-read format.
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.
A) normalization.
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.
C) entity-relationship diagram.
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.
A) two short marks.
Which of the following is NOT one of the techniques used in Web mining?
A) content mining
B) structure mining
C) usage mining
D) user mining
D) user mining
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 data mining software that is capable of
A) identifying associations.
B) identifying clusters.
C) identifying sequences.
D) classification.
C) identifying sequences.
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.
D) classification.
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.
D) historic and current internal data.
A data mart usually can be constructed more rapidly and at lower cost than a data warehouse because
A) a data mart typically focuses on a single subject area or line of business.
B) all the information is historical.
C) a data mart uses a Web interface.
D) all of the information belongs to a single company.
A) a data mart typically focuses on a single subject area or line of business.
Tools for analyzing data to help users find patterns, relationships, and insights and make better business decisions are known as
A) DSS.
B) business intelligence.
C) OLAP.
D) data mining.
B) Business intelligence
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.
C) OLAP.
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.
A) users to obtain online answers to ad-hoc questions in a rapid amount of time.
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.
B) find hidden relationships in data.
In terms of data relationships, 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.
C) occurrences linked to a single event.
________ tools are used to analyze large unstructured data sets, such as e-mail, memos, survey responses, etc., to discover patterns and relationships.
A) OLAP
B) Text mining
C) Web mining
D) Web content mining
B) Text mining
An alternative to using application server software for interfacing between a Web server and back-end databases is
A) CGI.
B) HTML.
C) Java.
D) SQL.
A) CGI.