Entity Relationship Model Quiz Form
Test your knowledge of Entity Relationship Modeling concepts with this concise quiz.
Which of the following best describes an Entity in an ER Model?
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A real-world object or concept that can be distinctly identified
A relationship between two tables
A type of attribute
A constraint in a database
Select all that are valid types of relationships in an ER Model:
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One-to-One
One-to-Many
Many-to-Many
Many-to-One
What is the primary purpose of a primary key in an entity?
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To uniquely identify each record
To link to other tables
To store attributes
To enforce referential integrity
Match each ER Model term to its correct definition.
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Rows
Definition
Entity
A uniquely identifiable object
A property of an entity
A link between entities
A set of possible values for an attribute
Attribute
A uniquely identifiable object
A property of an entity
A link between entities
A set of possible values for an attribute
Relationship
A uniquely identifiable object
A property of an entity
A link between entities
A set of possible values for an attribute
Domain
A uniquely identifiable object
A property of an entity
A link between entities
A set of possible values for an attribute
Give a brief definition of a weak entity.
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Which symbol is commonly used to represent a relationship in an ER diagram?
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Diamond
Rectangle
Ellipse
Line
Rate your confidence in your knowledge of ER Modeling.
Not confident
1
2
3
4
Very confident
5
1 is Not confident, 5 is Very confident
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