Exam 2: Data Models

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

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

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

MySQL is an example of the .

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

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

The network model has structural level dependence.

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

The object-oriented data model was developed in the .

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

Which of the following is True of business rules?

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

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

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

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

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

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

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

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

Business rules must be rendered in writing.