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 4 of 31

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Q31.

Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity?

Supertype entity

Subtype entity

Archetype entity

Instance entity

Discuss

Answer: (c).Archetype entity

Q32.

In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.

parent

child

instance

subtype

Discuss

Answer: (b).child

Q33.

The database schema is written in

HLL

DML

DDL

DCL

Discuss

Answer: (c).DDL

Q34.

An entity set that does not have sufficient attributes to form a primary key is a

strong entity set

weak entity set

simple entity set

primary entity set

Discuss

Answer: (b).weak entity set

Q35.

In an E-R diagram attributes are represented by

rectangle

square

ellipse

triangle

Discuss

Answer: (c).ellipse

Q36.

In case of entity integrity, the primary key may be

not Null

Null

both Null & not Null

any value

Discuss

Answer: (a).not Null

Q37.

In an E-R diagram an entity set is represent by a

rectangle

ellipse

diamond box

circle

Discuss

Answer: (a).rectangle

Q38.

E-R model uses this symbol to represent weak entity set ?

Dotted rectangle

Diamond

Doubly outlined rectangle

None of these

Discuss

Answer: (c).Doubly outlined rectangle

Q39.

Which of the following are the properties of entities?

Groups

Table

Attributes

Switchboards

Discuss

Answer: (c).Attributes

Q40.

What is a relationship called when it is maintained between two entities?

Unary

Binary

Ternary

Quaternary

Discuss

Answer: (b).Binary

Page 4 of 31

Welcome to the The Entity Relationship Approach MCQs Page

The Entity Relationship Approach MCQs | Page 4 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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