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DBMS Keys MCQs Quiz Online PDF Download eBook

Solve DBMS Keys Multiple Choice Questions (MCQ), dbms keys quiz answers PDF database practice test for online degree programs. Learn introduction to rdbms Multiple Choice Questions and Answers (MCQs), "DBMS Keys Quiz" questions and answers for best online schools for computer science. Learn structure of relational model, schema diagrams, dbms keys test prep for accelerated computer science degree online.

"A property of the entire relation, rather than of the individual tuples, is known as" Multiple Choice Questions (MCQ) on dbms keys with choices attribute, constant, variable, and key for best online schools for computer science. Practice dbms keys quiz questions for merit scholarship test and certificate programs for online software development courses.

MCQs on DBMS Keys PDF Download eBook

MCQ: A property of the entire relation, rather than of the individual tuples, is known as

  1. Attribute
  2. Constant
  3. Variable
  4. Key

D

MCQ: The address field of a person should not be part of the primary key, since it is likely to

  1. Dependent
  2. Changed
  3. Not changed
  4. Too long

B

MCQ: The primary key should be chosen such that its attribute values are

  1. Updated
  2. Dependent
  3. Changed
  4. Never changed

D

MCQ: We are often interested in superkeys for which no proper subset is a

  1. Superset key
  2. Superkey
  3. Primary key
  4. Unique key

B

MCQ: Minimal superkeys are called

  1. Unique key
  2. Superset key
  3. Candidate key
  4. Primary key

C