Constraints in DBMS MCQs Quiz Online PDF Download

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Study database design and er model aptitude test MCQs: mapping cardinalities are useful in describing, for free online computer science courses with choices unary relationships, binary relationships, composite relationships , simple relationships with distance learning test prep for computer science jobs, computer engineering jobs and IT jobs. Free skills assessment test is for online learning constraints in dbms quiz questions with MCQs, exam preparation questions and answers.

MCQs on Constraints in DBMS Quiz PDF Download

MCQ: Mapping cardinalities are useful in describing

  1. Unary relationships
  2. Binary relationships
  3. Composite relationships
  4. Simple relationships


MCQ: Mapping cardinalities can be of type

  1. 2 types
  2. 3 types
  3. 4 types
  4. 5 types


MCQ: Appropriate mapping cardinality for a particular relationship set depends on

  1. Model
  2. Schema
  3. Situation
  4. Domain


MCQ: Structure of primary key for relationship set depends on the

  1. Entity sets
  2. Roles
  3. Mapping cardinalities
  4. Mapping expression


MCQ: An entity set E in a relationship set R is said to be total if every entity in E participates in

  1. At least one relationship in R
  2. All relationships in R
  3. None relationship in R
  4. Few relationship in R