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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) D) and E)
G) C) and E)

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You work for a car rental agency and want to determine what characteristics are shared among your most loyal customers.To do this,you will want to use the data mining software you are using to do which of the following?


A) Identify associations
B) Identify clusters
C) Identify sequences
D) Classify data
E) Create a forecast

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

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


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

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

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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.
E) with a crow's foot topped by two short marks.

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

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In a client/server environment,a DBMS is located on a dedicated computer called a web server.

A) True
B) False

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You are creating a database to store temperature and wind data from various airports.Which of the following fields is the most likely candidate to use as the basis for a primary key in the Airport table?


A) Address
B) City
C) Airport code
D) State
E) Day

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

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Multiple data marts are combined and streamlined to create a data warehouse.

A) True
B) False

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The term big data refers to all of the following except:


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) .
E) data from Web traffic.

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

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MongoDB and SimpleDB are both examples of:


A) open source databases.
B) SQL databases.
C) NoSQL databases.
D) cloud databases.
E) big data databases.

F) All of the above
G) A) and E)

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Which of the following is not a method for performing a data quality audit?


A) Surveying entire data files
B) Surveying samples from data files
C) Surveying data definition and query files
D) Surveying end users about their perceptions of data quality
E) Surveying managers about their perceptions of data quality

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

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The fact that a traditional file system cannot respond to unanticipated information requirements in a timely fashion is an example of which of the following issues with traditional file systems?


A) Program-data dependence
B) Lack of flexibility
C) Poor security
D) Lack of data sharing
E) Data redundancy

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

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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) B) and D)
G) A) and D)

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Data scrubbing is a more intensive corrective process than data cleansing.

A) True
B) False

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Middleware is an application that transfers information from an organization's internal database to a web server for delivery to a user as part of a web page.

A) True
B) False

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Data ________ occurs when the same data is duplicated in multiple files of a database.


A) redundancy
B) repetition
C) independence
D) partitions
E) discrepancy

F) B) and C)
G) B) 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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List and describe three main capabilities or tools of a DBMS.

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A DBMS includes capabilities and tools f...

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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.
E) historic external data.

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

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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) C) and E)
G) C) and D)

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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 factors will influence how you design the database?

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Student answers will vary,but should inc...

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