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Database Systems Practice 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

Database Systems Exam Prep Tests

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Domain Relational Calculus App (Android & iOS)

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

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

PHP App (Android & iOS)

PHP App (Android & iOS)

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Basic Computer Knowledge App (iOS & Android)