Database Management System MCQs - Chapter 6

Entity Relationship Modeling Multiple Choice Questions (MCQ) PDF - 8

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Entity Relationship Modeling Questions & Answers PDF Download: MCQ Quiz 8

MCQ 36: The identification, aggregation and instantiation are abstraction concepts used in

intension and extension models
classes and nodes models
concrete models
semantic data models

MCQ 37: The type of specialization in which all the subclasses have membership condition on super class of similar attribute is classified as

constraint-defined specialization
key-defined specialization
entity-defined specialization
attribute-defined specialization

MCQ 38: If there is no association between aggregate and primitive objects then this can be represented as

IS-A-COMPONENT-OF relationship
IS-A-PART-OF relationship
IS-A-SUPERCLASS-OF relationship
IS-A-SUBCLASS-OF relationship

MCQ 39: In the process of specialization, the specific attributes are also classified as

public attributes
local attributes
aggregate attributes
segregate attributes

MCQ 40: The predicate-defined subclasses are also known as

condition-defined subclasses
non condition subclasses
aggregation subclasses
segregation subclasses

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