Which of the following is a semantic object?
a) representation of identifiable thing
b) characteristics of attribute
c) one or more object attributes
d) description of an attribute
How many types of cardinality attributes?
a) one
b) two
c) three
d) four
Explanation: minimum cardinality, maximum cardinality
The cardinality that indicates the minimum number of instances of attribute that exist…….
a) minimum cardinality
b) maximum cardinality
c) zero cardinality
d) none of these
The cardinality that indicates the maximum number of instances of attribute that exist…….
a) minimum cardinality
b) maximum cardinality
c) zero cardinality
d) none of these
Which of the following format indicate the cardinality?
a) n.m
b) nxm
c) n%m
d) n/m
An attribute or collection of attributes that are used to identify an object instance is called……
a) identifier
b) object identifier
c) group identifier
d) none of these
