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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.

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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.

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________ 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

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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.

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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.

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


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

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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

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


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

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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.

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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.

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The small publishing company you work for wants to create a new database for storing information about all of their author contracts.What difficulties do you anticipate?

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Data accuracy when the new data is input...

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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.

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

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


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

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

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

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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.

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

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Describe the ways in which database technologies could be used by an office stationery supply company to achieve product differentiation.

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Product databases could be made availabl...

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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.

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