MySQL is an example of a(n) ____.
Select one:
a. hierarchical model
b. file system data model
c. relational data model
d. XML data model - Answers relational data model
Within the database environment, a data model represents data structures with the purpose of
supporting a specific problem domain.
Select one:
True
False - Answers True
The entity relationship model is limited to conceptual modeling, with no implementation component.
Select one:
True
False - Answers True
The hierarchical model is software-independent.
Select one:
True
False - Answers False
The ____ model is the end users' view of the data environment.
Select one:
a. abstract
b. external
c. conceptual
d. internal - Answers external
In an SQL-based relational database, rows in different tables are related based on common values in
common attributes.
Select one:
True
False - Answers True
The terms data model and database model are often used interchangeably.
Select one:
True
False - Answers True
Business rules must be rendered in writing.
Select one:
True
False - Answers True
A manager and a programmer usually have the same view of the same data.
Select one:
True
False - Answers False
A(n) ____ is the equivalent of a field in a file system.
Select one:
a. attribute
b. entity
c. relationship
d. constraint - Answers attribute
Each row in the relational table is known as an entity instance or entity occurrence in the ER model.
Select one:
True
False - Answers True
An implementation-ready data model should contain a description of the data structure that will store
the end-user data.
Select one: