WGU C175 Data Management
Foundations Latest 2022 Rated A
They can serve as a communication tool between the users and designers. ✔✔Which of the
following is true of business rules?
entity ✔✔A(n) _______ is anything about which data are to be collected and stored.
XML/Hybrid data model ✔✔Oracle 11g is an example of the _______.
entity instance ✔✔Each row in the relational table is known as a(n)
relational data model ✔✔MySQL is an example of the _______.
attribute ✔✔A(n) _______ is the equivalent of a field in a file system.
entity relationship ✔✔The _______ model was developed to allow designers to use a graphical
tool to examine structures rather than describing them with text.
entity relationship ✔✔The _______ model uses the term connectivity to label the relationship
types.
1980s ✔✔The object-oriented data model was developed in the _______ .
network ✔✔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 ✔✔_______ are important because they help to ensure data integrity.
,Crow's Foot notation ✔✔In ________, a three pronged symbol represents the "many" side of the
relationship.
data definition language (DDL) ✔✔A(n) _______ enables a database administrator to describe
schema components.
file system data model ✔✔VMS/VSAM is an example of the _______.
1960s ✔✔The hierarchical data model was developed in the _______.
hierarchical ✔✔One of the limitations of the _______ model is that there is a lack of standards.
entity ✔✔A(n) _______ represents a particular type of object in the real world.
data manipulation language (DML) ✔✔A(n) ________ defines the environment in which data can
be managed and is used to work with the data in the database.
constraint ✔✔A(n) _______ is a restriction placed on the data.
They are not based on the relational model. ✔✔Which of the following is true of NoSQL
databases?
provide fault tolerance. ✔✔NoSQL databases:
relationship ✔✔A verb associating two nouns in a business rule translates to a(n) _______ in the
data model.
, business rule ✔✔A(n) _______ is a brief, precise, and unambiguous description of a policy,
procedure, or principle within a specific organization.
business rules ✔✔From a database point of view, the collection of data becomes meaningful only
when it reflects properly defined _______ .
It does not have standards ✔✔Which of the following is a disadvantage of the hierarchical data
model?
relation ✔✔The relational model's foundation is a mathematical concept known as a
relationship ✔✔A(n) _______ is bidirectional.
1970s ✔✔The relational data model was developed in the _______.
hierarchical ✔✔In the _______ model, each parent can have many children, but each child has
only one parent.
client node ✔✔Which of the following types of HDFS nodes acts as the interface between the user
application and the HDFS?
attribute ✔✔Each column in a relation represents a(n)
method ✔✔In object oriented terms, a(n) ________ defines an object's behavior.
tuple ✔✔Each row in a relation is called a(n)
data model ✔✔A(n) ________ is a relatively simple representation of more complex real-world
data structures.
Foundations Latest 2022 Rated A
They can serve as a communication tool between the users and designers. ✔✔Which of the
following is true of business rules?
entity ✔✔A(n) _______ is anything about which data are to be collected and stored.
XML/Hybrid data model ✔✔Oracle 11g is an example of the _______.
entity instance ✔✔Each row in the relational table is known as a(n)
relational data model ✔✔MySQL is an example of the _______.
attribute ✔✔A(n) _______ is the equivalent of a field in a file system.
entity relationship ✔✔The _______ model was developed to allow designers to use a graphical
tool to examine structures rather than describing them with text.
entity relationship ✔✔The _______ model uses the term connectivity to label the relationship
types.
1980s ✔✔The object-oriented data model was developed in the _______ .
network ✔✔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 ✔✔_______ are important because they help to ensure data integrity.
,Crow's Foot notation ✔✔In ________, a three pronged symbol represents the "many" side of the
relationship.
data definition language (DDL) ✔✔A(n) _______ enables a database administrator to describe
schema components.
file system data model ✔✔VMS/VSAM is an example of the _______.
1960s ✔✔The hierarchical data model was developed in the _______.
hierarchical ✔✔One of the limitations of the _______ model is that there is a lack of standards.
entity ✔✔A(n) _______ represents a particular type of object in the real world.
data manipulation language (DML) ✔✔A(n) ________ defines the environment in which data can
be managed and is used to work with the data in the database.
constraint ✔✔A(n) _______ is a restriction placed on the data.
They are not based on the relational model. ✔✔Which of the following is true of NoSQL
databases?
provide fault tolerance. ✔✔NoSQL databases:
relationship ✔✔A verb associating two nouns in a business rule translates to a(n) _______ in the
data model.
, business rule ✔✔A(n) _______ is a brief, precise, and unambiguous description of a policy,
procedure, or principle within a specific organization.
business rules ✔✔From a database point of view, the collection of data becomes meaningful only
when it reflects properly defined _______ .
It does not have standards ✔✔Which of the following is a disadvantage of the hierarchical data
model?
relation ✔✔The relational model's foundation is a mathematical concept known as a
relationship ✔✔A(n) _______ is bidirectional.
1970s ✔✔The relational data model was developed in the _______.
hierarchical ✔✔In the _______ model, each parent can have many children, but each child has
only one parent.
client node ✔✔Which of the following types of HDFS nodes acts as the interface between the user
application and the HDFS?
attribute ✔✔Each column in a relation represents a(n)
method ✔✔In object oriented terms, a(n) ________ defines an object's behavior.
tuple ✔✔Each row in a relation is called a(n)
data model ✔✔A(n) ________ is a relatively simple representation of more complex real-world
data structures.
