Question 1

Today, most relational database products can be classified as object/relational.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is True of business rules?

Accepted Answer

A)   They allow the designer to set company policies with regard to data.
B)   They allow the designer to develop business processes.
C)   They can serve as a communication tool between the users and designers.
D)   They provide a framework for the company's self-actualization.

Question 3

MySQL is an example of the .

Accepted Answer

A)   hierarchical model
B)   file system data model
C)   relational data model
D)   XML data model

Question 4

A verb associating two nouns in a business rule translates to a(n)  in the data model.

Accepted Answer

A)   entity
B)   attribute
C)   relationship
D)   constraint

Question 5

The model uses the term connectivity to label the relationship types.

Accepted Answer

A)   relational
B)   network
C)   object-oriented
D)   entity relationship

Question 6

The is the representation of a database as "seen" by the DBMS.

Accepted Answer

The answer of The is the representation of a database...

Question 7

The object-oriented data model was developed in the .

Accepted Answer

A)   1960s
B)   1970s
C)   1980s
D)   1990s

Question 8

In the model, each parent can have many children, but each child has only one parent.

Accepted Answer

A)   hierarchical
B)   network
C)   relational
D)   entity relationship

Question 9

Database designers determine the data and information that yield the required understanding of the entire business.

Accepted Answer

A) True 
 B)False

Question 10

An internal refers to a specific representation of an internal model, using the database constructs supported by the chosen database.

Accepted Answer

A)   tuple
B)   schema
C)   object
D)   value

Question 11

A(n)  is the equivalent of a field in a file system.

Accepted Answer

A)   attribute
B)   entity
C)   relationship
D)   constraint

Question 12

A(n)  's main function is to help one understand the complexities of the real-world environment.

Accepted Answer

A)   node
B)   entity
C)   model
D)   database

Question 13

Each row in the relational table is known as a(n) .

Accepted Answer

The answer of Each row in the relational table is...

Question 14

Business rules must be rendered in writing.

Accepted Answer

A) True 
 B)False

Question 15

A(n) is a collection of similar objects with a shared structure and behavior.

Accepted Answer

The answer of A(n) is a collection of similar objects...

Question 16

In , a three-pronged symbol represents the "many" side of the relationship.

Accepted Answer

Crow's Foo...

Question 17

Which of the following types of HDFS nodes acts as the interface between the user application and the HDFS?

Accepted Answer

A)   Data node
B)   Client node
C)   Name node
D)   Map node

Question 18

What are the sources of business rules, and what is the database designer's role with regard to business rules?

Accepted Answer

The main sources of business rules are c...

Question 19

A(n)  is a restriction placed on the data.

Accepted Answer

A)   attribute
B)   entity
C)   relationship
D)   constraint

Question 20

The network model has structural level dependence.

Accepted Answer

A) True 
 B)False

Exam 2: Data Models

Database designers determine the data and information that yield the required understanding of the entire business.

Correct AnswerverifiedShow Answer

Each row in the relational table is known as a(n) .

Correct AnswerverifiedShow Answer

A verb associating two nouns in a business rule translates to a(n) in the data model.

Correct AnswerverifiedShow Answer

The is the representation of a database as "seen" by the DBMS.

Correct AnswerverifiedShow Answer

What are the sources of business rules, and what is the database designer's role with regard to business rules?

Correct AnswerverifiedThe main sources of business rules are c...View AnswerShow Answer

In , a three-pronged symbol represents the "many" side of the relationship.

Correct AnswerverifiedCrow's Foo...View AnswerShow Answer

Which of the following is True of business rules?

Correct AnswerverifiedShow Answer

In the model, each parent can have many children, but each child has only one parent.

Correct AnswerverifiedShow Answer

A(n) is a restriction placed on the data.

Correct AnswerverifiedShow Answer

A(n) is a collection of similar objects with a shared structure and behavior.

Correct AnswerverifiedShow Answer

Business rules must be rendered in writing.

Correct AnswerverifiedShow Answer

An internal refers to a specific representation of an internal model, using the database constructs supported by the chosen database.

Correct AnswerverifiedShow Answer

The network model has structural level dependence.

Correct AnswerverifiedShow Answer

A(n) 's main function is to help one understand the complexities of the real-world environment.

Correct AnswerverifiedShow Answer

The model uses the term connectivity to label the relationship types.

Correct AnswerverifiedShow Answer

The object-oriented data model was developed in the .

Correct AnswerverifiedShow Answer

Today, most relational database products can be classified as object/relational.

Correct AnswerverifiedShow Answer

A(n) is the equivalent of a field in a file system.

Correct AnswerverifiedShow Answer

MySQL is an example of the .

Correct AnswerverifiedShow Answer

Which of the following types of HDFS nodes acts as the interface between the user application and the HDFS?

Correct AnswerverifiedShow Answer

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The main sources of business rules are c...
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Crow's Foo...
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