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Database Systems Practice Test 95

Relational Databases Quiz Questions with Answers PDF - 95

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Relational Databases Trivia Questions PDF Download: Quiz 95

MCQ 471: The relational model hides low-level implementation details from

A) Users
B) Developers
C) Both A and B
D) System itself

MCQ 472: The degree of durability in which transaction commits as soon as its written at the primary and the backup site is known to be

A) One-safe
B) Two-very-safe
C) Two-safe
D) Three-safe

MCQ 473: For testing whether a subquery has duplicate tuples in its result, SQL includes a

A) Comparison function
B) Boolean Function
C) Aggregate Function
D) Induced function

MCQ 474: File scans are algorithms for searching that is used to locate and retrieve records, fulfilling a

A) Projection condition
B) Selection condition
C) Hashing condition
D) Evaluation plan condition

MCQ 475: At the logical level a record can be described as a

A) Block
B) Type definition
C) Segments
D) Sequences

Database Systems Exam Prep Tests

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