Database Management System MCQs (Computer Science) From Textbook

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Database Management System MCQs – Practice Test 8 (Chapter 6)

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The MCQ: The identification, aggregation and instantiation are abstraction concepts used in; "Database Management System Notes" App APK Download with answers: classes and nodes models, intension and extension models, concrete models, and semantic data models for online computer science degrees. Practice Advantages of DBMS Quiz Questions, download Kobo e-Book (Free Chapter) for online computer science degrees.

Entity Relationship Modeling MCQs – Practice Test 8 PDF Download

MCQ: 36

The identification, aggregation and instantiation are abstraction concepts used in

  1. intension and extension models
  2. classes and nodes models
  3. concrete models
  4. 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

  1. constraint-defined specialization
  2. key-defined specialization
  3. entity-defined specialization
  4. attribute-defined specialization
MCQ: 38

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

  1. IS-A-COMPONENT-OF relationship
  2. IS-A-PART-OF relationship
  3. IS-A-SUPERCLASS-OF relationship
  4. IS-A-SUBCLASS-OF relationship
MCQ: 39

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

  1. public attributes
  2. local attributes
  3. aggregate attributes
  4. segregate attributes
MCQ: 40

The predicate-defined subclasses are also known as

  1. condition-defined subclasses
  2. non condition subclasses
  3. aggregation subclasses
  4. segregation subclasses

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