CS403P Quiz 3

Q1. ___________ represents characteristics of an object.

1. Relationship
2. Cardinality
3. Modality
4. Attribute

Correct answer: Attribute

Q2. In Entity Relationship Data Model, which of the following symbol is used to represent Entity Type?

1. Parallelogram
2. Oval
3. Diamond
4. Rectangle

Correct answer: Rectangle

Q3. Which of the following statement is true about Entity Set?

1. A group of entity instances of a particular entity type
2. A group of attributes of a particular entity type
3. A group of relationship between different entities
4. A group of instances of particular attributes

Correct answer: A group of entity instances of a particular entity type

Q4. Which of the following is used to represents an association between different entities?

1. Relationship
2. Entity
3. Attribute
4. Identifier

Correct answer: Relationship

Q5. According to the definition of an entity, which of the following is NOT included in it?

1. Action
2. Object
3. Person
4. Concept

Correct answer: Action

Q6. In an Entity Relationship diagram, a rectangle represents ___________.

1. Entities
2. Relationship
3. Identifier
4. Attributes

Correct answer: Entities