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Database Systems Entrance Exam: Mock Test 13

Domain Relational Calculus Quiz Questions and Answers PDF Download - 13

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Domain Relational Calculus Questions and Answers PDF Download: MCQ 13

MCQ: 61

A second form of relational calculus, is known as

  1. Domain relational calculus
  2. Relational calculus
  3. Tuple relational calculus
  4. Attribute relational calculus
MCQ: 62

The solution to improving reliability is to introduce

  1. Repositioning
  2. Reflectivity
  3. Transitivity
  4. Redundancy
MCQ: 63

Algebraic operation that outputs specified attributes from all rows of the input relation, is said to be

  1. Natural join
  2. Union operation
  3. Projection
  4. Selection
MCQ: 64

The interface ResultSet has a method, getMetaData(), that returns a/an

  1. Tuple
  2. Value
  3. Object
  4. Result
MCQ: 65

A method that uses two independent pieces/processes of information to identify a user is known as

  1. Authentication through encryption
  2. Password-method authentication
  3. Two-method authentication
  4. Two-factor authentication

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Domain Relational Calculus Quiz App

DataBase Management System (MCS) Quiz App (iOS & Android)

DataBase Management System (MCS) Quiz App

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