Welcome to the The Entity Relationship Approach MCQs Page

Dive deep into the fascinating world of The Entity Relationship Approach with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of The Entity Relationship Approach, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of The Entity Relationship Approach, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within DBMS.

Check out the MCQs below to embark on an enriching journey through The Entity Relationship Approach. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of DBMS.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of The Entity Relationship Approach. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

The Entity Relationship Approach MCQs | Page 5 of 31

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Q41.

A set of possible data values is called

attribute

degree

tuple

domain

Discuss

Answer: (d).domain

Q42.

Which of the following is another name for weak entity?

Child

Owner

Dominant

All of the above

Discuss

Answer: (a).Child

Q43.

In E-R Diagram derived attribute are represented by

Ellipse

Dashed ellipse

Rectangle

Triangle

Discuss

Answer: (b).Dashed ellipse

Q44.

An instance of relational schema R (A, B, C) has distinct values of A including NULL values. Which one of the following is true?

A is a candidate key

A is not a candidate key

A is a primary Key

Both a and c

Discuss

Answer: (b).A is not a candidate key

Q45.

In E-R Diagram relationship type is represented by

Ellipse

Dashed ellipse

Rectangle

Diamond

Discuss

Answer: (d).Diamond

Q46.

In E-R diagram generalization is represented by

Ellipse

Dashed ellipse

Rectangle

Triangle

Discuss

Answer: (d).Triangle

Q47.

Database supports _______ types of database schema's.

Discuss

Answer: (a).3

Q48.

Which of the following are valid types of Database Schema's ?

Physical Schema

Practical Schema

Logical Schema

Physical and Logical Schema

Discuss

Answer: (d).Physical and Logical Schema

Q49.

Which of the following schema is present at highest level ?

Physical Schema

Sub-Schema

Logical Schema

None of these

Discuss

Answer: (b).Sub-Schema

Q50.

Map of concepts and their relationships is represented by __________ Schema.

Conceptual Schema

Logical Schema

Physical Schema

None of these

Discuss

Answer: (a).Conceptual Schema

Page 5 of 31

Welcome to the The Entity Relationship Approach MCQs Page

The Entity Relationship Approach MCQs | Page 5 of 31

Explore more Topics under DBMS

DBMS Basics

Data Models

Relational Databases

Data Storage and Querying

Relational Algebra

Normalization

Storage and File Structures

Indexing and Hashing

Transactions

Concurrency Control

Recovery System

Distributed Databases

SQL

Data Warehousing and Data Mining

RDBMS

Advanced SQL

SQL Queries,Constraints and Triggers

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