ER Diagram Quiz

Which of the following is used to represent an entity in an ER diagram?

• Ellipse

• Rectangle

• Diamond

• Line

A relationship is represented by which shape in an ER diagram?

• Ellipse

• Rectangle

• Diamond

• Triangle

A weak entity is represented by:

• A double rectangle

• A double diamond

• A dotted ellipse

• A thick ellipse

In an ER diagram, total participation is represented by:

• A dotted line

• A double line

• A single line

• An arrow

A ________ attribute is one that can be calculated from other attributes.