Data Management Foundations WGU C175 EXAM/ 20223/2024 /GRADED A
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Data Management Foundations WGU
C175 EXAM/ 20223/2024 /GRADED A
They can serve as a communication tool between the users and designers. -
CORRECT ANSWER Which of the following is true of business rules?
entity - CORRECT ANSWER A(n) _______ is anything about which data are to be
collected an...
Data Management Foundations WGU
C175 EXAM/ 20223/2024 /GRADED A
They can serve as a communication tool between the users and designers. -
CORRECT ANSWER Which of the following is true of business rules?
entity - CORRECT ANSWER A(n) _______ is anything about which data are to be
collected and stored.
XML/Hybrid data model - CORRECT ANSWER Oracle 11g is an example of the
_______.
entity instance - CORRECT ANSWER Each row in the relational table is known as
a(n)
relational data model - CORRECT ANSWER MySQL is an example of the
_______.
attribute - CORRECT ANSWER A(n) _______ is the equivalent of a field in a file
system.
entity relationship - CORRECT ANSWER The _______ model was developed to
allow designers to use a graphical tool to examine structures rather than
describing them with text.
,entity relationship - CORRECT ANSWER The _______ model uses the term
connectivity to label the relationship types.
1980s - CORRECT ANSWER The object-oriented data model was developed in
the _______ .
network - CORRECT ANSWER In the _______ model, the user perceives the
database as a collection of records in 1:M relationships, where each record can
have more than one parent.
constraints - CORRECT ANSWER _______ are important because they help to
ensure data integrity.
Crow's Foot notation - CORRECT ANSWER In ________, a three pronged symbol
represents the "many" side of the relationship.
data definition language (DDL) - CORRECT ANSWER A(n) _______ enables a
database administrator to describe schema components.
file system data model - CORRECT ANSWER VMS/VSAM is an example of the
_______.
1960s - CORRECT ANSWER The hierarchical data model was developed in the
_______.
hierarchical - CORRECT ANSWER One of the limitations of the _______ model is
that there is a lack of standards.
,entity - CORRECT ANSWER A(n) _______ represents a particular type of object
in the real world.
data manipulation language (DML) - CORRECT ANSWER A(n) ________ defines
the environment in which data can be managed and is used to work with the data
in the database.
constraint - CORRECT ANSWER A(n) _______ is a restriction placed on the data.
They are not based on the relational model. - CORRECT ANSWER Which of the
following is true of NoSQL databases?
provide fault tolerance. - CORRECT ANSWER NoSQL databases:
relationship - CORRECT ANSWER A verb associating two nouns in a business
rule translates to a(n) _______ in the data model.
business rule - CORRECT ANSWER A(n) _______ is a brief, precise, and
unambiguous description of a policy, procedure, or principle within a specific
organization.
business rules - CORRECT ANSWER From a database point of view, the
collection of data becomes meaningful only when it reflects properly defined
_______ .
, It does not have standards - CORRECT ANSWER Which of the following is a
disadvantage of the hierarchical data model?
relation - CORRECT ANSWER The relational model's foundation is a
mathematical concept known as a
relationship - CORRECT ANSWER A(n) _______ is bidirectional.
1970s - CORRECT ANSWER The relational data model was developed in the
_______.
hierarchical - CORRECT ANSWER In the _______ model, each parent can have
many children, but each child has only one parent.
client node - CORRECT ANSWER Which of the following types of HDFS nodes
acts as the interface between the user application and the HDFS?
attribute - CORRECT ANSWER Each column in a relation represents a(n)
method - CORRECT ANSWER In object oriented terms, a(n) ________ defines
an object's behavior.
tuple - CORRECT ANSWER Each row in a relation is called a(n)
data model - CORRECT ANSWER A(n) ________ is a relatively simple
representation of more complex real-world data structures.
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