Contents

Which of the following refer to an entity that logically depends on another entity?
a) weak entity     

b) strong entity
c) independent entity
d) dependent entity

a

In E-R diagram, a rectangle represents an
a) entity class                      

b) weak entity
c) relationship                      

d) attribute

a

In E-R diagram, a rectangle with rounded corner represents an……
a) entity class                      

b) weak entity
c) relationship                      

d) attribute

b

In E-R diagram, a ellipse represents an…
a) entity class                      

b) weak entity
c) relationship                      

d) attribute

d

In E-R diagram, a relationship is represented by……
a) rectangle                          

b) ellipse
c) rectangle with rounded corner
d) diamond

d

An attribute that consists of a group of attributes is called…….
a) multi-valued attribute 
b) composite attribute
c) composite identifier

d) identifiers


a