Constraints in DBMS MCQs Quiz Online PDF Book Download

Constraints in dbms multiple choice questions (MCQs), constraints in dbms quiz answers to learn database online courses. Database design and er model MCQs, constraints in dbms quiz questions and answers for online bachelor's degree information technology. Learn extended er features, entity relationship model, specialization, notations for modeling data, entity relationship diagrams, constraints in dbms test prep for data science certification.

Learn database design and er model MCQ: mapping cardinalities are useful in describing, with choices unary relationships, binary relationships, composite relationships, and simple relationships for online bachelor's degree information technology. Practice merit scholarships assessment test, online learning constraints in dbms quiz questions for competitive exams in computer science major .

MCQs on Constraints in DBMS PDF Book 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