Database Systems Practice Test 13

Domain Relational Calculus Quiz Questions and Answers PDF - 13

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Domain Relational Calculus Questions and Answers PDF Download: Quiz 13

MCQ 61: A second form of relational calculus, is known as

Domain relational calculus
Relational calculus
Tuple relational calculus
Attribute relational calculus

MCQ 62: The solution to improving reliability is to introduce

Repositioning
Reflectivity
Transitivity
Redundancy

MCQ 63: Algebraic operation that outputs specified attributes from all rows of the input relation, is said to be

Natural join
Union operation
Projection
Selection

MCQ 64: The interface ResultSet has a method, getMetaData(), that returns a/an

Tuple
Value
Object
Result

MCQ 65: A method that uses two independent pieces/processes of information to identify a user is known as

Authentication through encryption
Password-method authentication
Two-method authentication
Two-factor authentication

Database Systems Exam Prep Tests

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