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Database Systems MCQs – Practice Test 1 (Chapter 4)

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Database Design and ER Model MCQs – Practice Test 1 PDF Download

MCQ 1: In an E-R diagram, specialization is represented by a:

  1. Hollow arrow-head
  2. Solid arrow-head
  3. Dashed arrow-head
  4. Double arrow-head

MCQ 2: The relationship between the weak entity set and the identifying entity set's association is known as:

  1. Owner relationship
  2. Existence relationship
  3. Dependency relationship
  4. Identifying relationship

MCQ 3: Mapping cardinalities are useful in describing:

  1. Unary relationships
  2. Binary relationships
  3. Composite relationships
  4. Simple relationships

MCQ 4: A weak entity set can make participation in any relationship other than the:

  1. Strong relationship
  2. Relational relationship
  3. Domain relationship
  4. Identifying relationship

MCQ 5: The mapping cardinalities can be of type:

  1. 2 types
  2. 3 types
  3. 4 types
  4. 5 types

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