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WGU C175 Data Management Foundations Latest 2022 Rated A

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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 a...

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  • September 28, 2022
  • 24
  • 2022/2023
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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.

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