Relational Databases Quiz Questions and Answers 95 PDF Download

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Free online relational databases course worksheet has multiple choice quiz question: relational model hides low-level implementation details from with options Users , Developers , Both A and B and system itself to improve study skills and to qualify online universities' competitive exams with online learning courses, study introduction to dbms multiple choice questions based quiz question and answers.

Quiz on Relational Databases Worksheet 95 Quiz PDF Download

Relational Databases Quiz

MCQ: Relational model hides low-level implementation details from

  1. Users
  2. Developers
  3. Both A and B
  4. System itself

C

ARIES Algorithm in DBMS Quiz

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

  1. One-safe
  2. Two-very-safe
  3. Two-safe
  4. Three-safe

B

Nested Subqueries Quiz

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

  1. Comparison function
  2. Boolean Function
  3. Aggregate Function
  4. Induced function

B

Selection Operation in SQL Quiz

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

  1. Projection condition
  2. Selection condition
  3. Hashing condition
  4. Evaluation plan condition

B

View of Data Quiz

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

  1. Block
  2. Type definition
  3. Segments
  4. Sequences

B