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

A) True
B) False

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You can use OLAP to perform multidimensional data analysis.

A) True
B) False

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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.

F) None of the above
G) A) and E)

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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.

F) A) and B)
G) A) and C)

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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

F) C) and E)
G) B) and D)

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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.

F) C) and E)
G) B) and C)

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A record is a group of related fields.

A) True
B) False

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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) unique ID.
E) primary entity.

F) A) and B)
G) D) and E)

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What makes data mining an important business tool? What types of information does data mining produce? In what type of circumstance would you advise a company to use data mining?

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Data mining is one of the data analysis ...

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In a large organization,which of the following functions would be responsible for policies and procedures for managing internal data resources?


A) Data administration
B) Database administration
C) Information policy administration
D) Data auditing
E) Database management

F) None of the above
G) A) and D)

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A database ________ describes a database entity.


A) byte
B) field
C) record
D) value
E) file

F) A) and C)
G) B) and D)

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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

F) B) and D)
G) C) and D)

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Distributors for a furniture manufacturer are complaining that the billing for goods they order is frequently not correct,and sometimes are sent to the wrong e-mail and postal addresses.What steps would you take to improve the quality of data in the manufacturer's databases?

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The first step is to perform a data qual...

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The term data governance refers to the policies and processes for managing the integrity and security of data in a firm.

A) True
B) False

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

A) True
B) False

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Describe the ways in which database technologies could be used by a toy manufacturer to achieve product differentiation.

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Product databases could be made availabl...

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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.

F) A) and E)
G) B) and D)

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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.

F) A) and B)
G) C) and D)

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

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The select operation creates a subset co...

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List three ways that a business's data can become redundant or inconsistent.

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Data redundancy and inconsistency can oc...

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