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Database Systems MCQs (Computer Science) From Textbook

Database Systems Certification MCQs – Practice Test 3 (Chapter 4)

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MCQ 11: The appropriate mapping cardinality for a particular relationship set depends on:

  1. Model
  2. Schema
  3. Situation
  4. Domain

MCQ 12: If a relationship set has some associated attributes, then it is enclosed in a:

  1. Diamond
  2. Double Diamond
  3. Rectangle
  4. Circle

MCQ 13: The number of transactions that can be processed on a system in average per unit of time, is known to be its:

  1. Queue time
  2. Buffer time
  3. Throughput
  4. Response time

MCQ 14: An entity-relationship diagram provides a graphical representation of the:

  1. Context
  2. Framework
  3. Schema
  4. Modules

MCQ 15: The database user assigns entities to a given entity set, in the type of generalization's constraints:

  1. Data-defined
  2. User-defined
  3. System-defined
  4. Condition-defined

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