The relationship that is established between the instances of same entity type is called…..
a) unary relationship
b) binary relationship
c) ternary relationship
d) none of these
The most common type of relationship encountered in data modeling is……… relationship.
a) unary
b) binary relationship
c) ternary
d) associative
Which is not a basic construct of E-R model?
a) relationships
b) entity types
c) identifiers
d) attributes
Which of the following is example of multi-valued attributes?
a) student-address
b) college-degree
c) student-GPA
d) ID-number
………specifies the number of instances of one entity that can be associated with each instance of another.
a) multivalued attributes
b) cardinality constraints
c) entity instances
d) associative entity
An entity class is…….
a) contains one instance of particular entity
b) contain structure
c) represents something
d) both b & c
