Contents

What is single occurrence of an entity is called?
a) entity                                   
b) attribute
c) relationship       
d) entity instance

d

The property or characteristics of an entity is called………
a) entity                                   
b) attribute
c) relationship             
d) none of these

b

What is the meaningful association among entities is called?
a) entity                                   
b) attribute
c) relationship
d) none of these

c

The number of participating entities in a relationship is known as……
a) entity                                   
b) attribute
c) degree of relationship         
d) none of these

c

How many types of relationship?
a) one  
b) two 
c) three 
d) four

c

Explanation: unary relationship, binary relationship, ternary relationship



Unary relationship is also called……
a) recursive relationship         
b) repeated relationship
c) owned relationship   
d) all of these


a