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Database Systems MCQs (Computer Science) From Textbook

Database Systems MCQs – Practice Test 23 (Chapter 4)

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Database Design and ER Model Quiz – Practice Test 23 PDF Download

MCQ 111: The conceptual-design phase output results in the creation of:

  1. Entity-relationship diagram
  2. Relational diagram
  3. Rational diagram
  4. Structured diagram

MCQ 112: The notion of a key for a relation schema, applies directly to:

  1. Relationships
  2. Roles
  3. Attributes
  4. Entity sets

MCQ 113: Specialization emphasizes on differences by creating distinctions among:

  1. Entity sets
  2. Attribute sets
  3. Instances
  4. Relations

MCQ 114: For each attribute, there is a set of permitted:

  1. Actions
  2. Values
  3. Sets
  4. Roles

MCQ 115: The second phase of database design is to:

  1. Gathering data needs
  2. Conceptual schema
  3. Conceptual schema
  4. Choosing data model

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