Database Systems MCQs (Computer Science) From Textbook

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Database Systems MCQs – Practice Test 22 (Chapter 4)

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The MCQ: In the top-down design of refinement, the distinctions are made; "Database Systems MCQ" App (Android, iOS) with answers: blurred, explicit, invisible, and dependent to learn software engineering courses. Practice Bitmap Indices Quiz Questions, download Apple Book (Free Chapter) for computer software engineer.

Database Design and ER Model MCQ – Practice Test 22 PDF Download

MCQ: 106

In the top-down design of refinement, the distinctions are made

  1. Explicit
  2. Blurred
  3. Invisible
  4. Dependent
MCQ: 107

In an E-R diagram, entity sets are represented by

  1. Rectangles divided into two parts
  2. Undivided rectangle
  3. Diamond
  4. Circle
MCQ: 108

The database schema is developed at conceptual-design phase which provides a

  1. Narrow overview of the enterprise
  2. Detailed overview of the enterprise
  3. Limited overview of the enterprise
  4. Reflective overview of the enterprise
MCQ: 109

The difference of entities must be expressed in terms of their

  1. Values
  2. Locators
  3. Size
  4. Attributes
MCQ: 110

The constraint type that requires that an entity belong to no more than one lower-level entity set, is said to be

  1. Overlapping constraint
  2. Completeness constraint
  3. Disjointness constraint
  4. Unity constraint

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Database Design and ER Model MCQs Apps (Android & iOS)

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