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Database Management System Study Material: Practice Test 7 (Chapter 1)

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Data Modeling Entity Relationship Model Exam Questions and Answers PDF Download: Test 7

MCQ: 31

The derived attributes in entity relationship diagrams are denoted by

  1. dotted triangle
  2. dotted rectangle
  3. dotted oval
  4. dotted square
MCQ: 32

In designing of software, the functional requirements are specified with the help of

  1. sequence diagrams
  2. dataflow diagrams
  3. scenarios
  4. all of above
MCQ: 33

In the database, the set of all entities related to a particular entity type is classified as

  1. structural entity set
  2. entity set
  3. functional set of entity
  4. logical set of entity
MCQ: 34

In entity-relationship, the entity type which has existence dependency constraint is classified as

  1. single entity
  2. foreign entity
  3. weak entity
  4. strong entity
MCQ: 35

The set of key attributes that identify weak entities related to some owner entity is classified as

  1. structural key
  2. partial key
  3. string key
  4. foreign key

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