ERD

What entity type is used in the given diagram?

• STUDENT
• DOCTOR
• EMPLOYEE
• COURSE

Which attribute is the MULTI-VALUED ATTRIBUTE?

• EmpID
• Degree
• Age
• Address

Which attribute is the COMPOSITE ATTRIBUTE?

• Degree

• Age

• Salary

• Address

Which attribute is the DERIVED ATTRIBUTE?

• EmpID
• Age
• Name
• Degree

Which attribute is the PRIMARY KEY?

• EmpID
• Degree
• Name
• Birthday

Each entity is described by __________.

• entity

• relationship

• none of these

• attribute

This key uniquely identifies each record in an entity.

• Primary Key

• Foreign Key

• Secondary Key

• Composite Key

Diamond shape is symbol for ?

• Entity

• Cardinality

• Relationship

• Atribut

This shape is symbol for ?

• Atribute

• Relationship

• Entity

• Cardinality

For ERD this shape describe for ?

• Cardinality

• Relationship

• Attribute

• Entity