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Chapter Quiz
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1
The most basic logical data element is the _______________, which consists of a single alphabetic, numeric, or other symbol.
A)character
B)bit
C)entity
D)byte
2
Which of the following best describes a database?
A)It is an integrated collection of logically related records or files
B)It consolidates records previously stored in separate files into a common pool of data records
C)It includes stored data that is independent of the application programs using it
D)All of the choices are correct
3
Three basic operations can be performed on a relational database to create useful sets of data. The _______________ operation is used to create a subset of records that meet a stated criterion.
A)pick
B)filter
C)sort
D)select
4
The multidimensional database model is a variation of the _______________ model.
A)hierarchical
B)network
C)object-oriented
D)relational
5
An object does which of the following?
A)Combines the attributes and programs (operations) that can be performed on those attributes.
B)Separates the attributes and programs (operations) that can be performed on those attributes.
C)Has no effect on the attributes and programs (operations) that can be performed on those attributes.
D)None of the above are correct.
6
Checking, savings, and installment lending are the business processes whose data models are part of a larger banking services data model that serves as a _______________ data framework for all bank services.
A)logical
B)physical
C)conceptual
D)technical
7
At Emerson Process Management, data analysts in each business unit are tasked with all of the following except:
A)Establishing and communicating data standards
B)Ensuring that data integrity is maintained during database conversions
C)Simplifying complex business processes
D)Creating a logical design for the data warehouse tables
8
Acquiring information from various operational and external databases and then cleaning and transforming it into data suitable for analysis involves _______________.
A)filtering out unwanted data
B)correcting incorrect data
C)aggregating data into new data subsets
D)All of the choices are correct.
9
When the file processing approach became too _______________ to supply the information needed to manage modern business, it was replaced by the database management approach.
A)cumbersome
B)inflexible
C)costly
D)All of the choices are correct.
10
According to the Real World Case, Acxiom Corporation typically stores _______________ of complete customer-history data for clients.
A)six months
B)twelve months
C)three years
D)seven years





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