Data Modeling - Revision

1. What is a NOT in components of ERD ?

• Entity

• Relationship

• Data

• Attributes

Entity

• Rectangle

• Oval

• Diamond

3. What is a component in ERD related for this picture?

• Strong Entity

• Weak Entity

• Derived Attributes

• Composite Attributes

4. Email and Phone number can be....... Which answer suitable for this statement?

• Composite Attributes

• Derived Attributes

• Multivalued Attributes

• Key Attributes

5. Total prices of sales can be considered as ......

• Multivalued Attributes

• Composite Attributes

• Derived Attributes

• Key Attributes

6. What type of attributes in this Figure?

• Multivalued Attributes

• Derived Attributes

• Composite Attributes

• Key Attributes

7. What type of attributes from this Figure?

• Composite Attributes

• Derived Attributes

• Multivalued Attributes

• Key Attributes

8. What type of this attributes of this Figure?

• Derived Attributes

• Multivalued Attributes

• Composite Attributes

• Key Attributes

9. What type of this relationship?

• One employee can manage many department

• Each employee can manage many department

• Each employee can manage one department only

• Many employee can manage one department

10. What type of relationship is correct based on Figure besides?

• One customer can placed only single order at one time

• Many customer can placed only single order at one time

• One customer can placed one or more order

• An order can be placed by many cudtomer