Constraints in DBMS MCQs Quiz Online PDF Download

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Database management system practice test MCQ: mapping cardinalities are useful in describing with choices unary relationships, binary relationships, composite relationships and simple relationships problem solving skills for summative and formative assessment, competitive exam prep, interview questions with answer key. Free study guide is for online learning constraints in dbms quiz with MCQs to practice test questions with 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

B

MCQ. Mapping cardinalities can be of type

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

C

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

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

C

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

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

C

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

A