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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.

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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 20 of 31

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Q191.
The category which considers the union of super class entities is called

a.

total super class

b.

partial super class

c.

disjoint super class

d.

joined super class

Discuss
Answer: (a).total super class
Q192.
Considering the conceptual synthesis and refinement, the specialization process is classified as

a.

conceptual refinement

b.

conceptual identification

c.

conceptual instantiation

d.

conceptual synthesis

Discuss
Answer: (d).conceptual synthesis
Q193.
If the super class contains the entities in subclasses and is derived from super class then the super class is considered as

a.

total

b.

partial

c.

overlap

d.

disjoint

Discuss
Answer: (a).total
Q194.
The process of defining the entity type subclasses is classified as

a.

type inheritance

b.

visualization

c.

specialization

d.

generalization

Discuss
Answer: (c).specialization
Q195.
The entity types, super classes and subclasses are classified as

a.

ER schema overlapping

b.

ER schema functions

c.

ER schema objects

d.

EER schema constructs

Discuss
Answer: (d).EER schema constructs
Q196.
The subclass which has more than one super class is called

a.

partial subclass

b.

shared subclass

c.

shared super class

d.

joint super class

Discuss
Answer: (b).shared subclass
Q197.
The type of subclass constraint that one entity can be member of at most one subclass is classified as

a.

incomplete joint constraint

b.

complete joint constraint

c.

disjointness constraint

d.

jointness constraint

Discuss
Answer: (c).disjointness constraint
Q198.
In UML class diagrams, the inheritances that are permitted includes

a.

single inheritance

b.

multiple inheritance

c.

shared schema inheritance

d.

both a and b

Discuss
Answer: (d).both a and b
Q199.
The leaf nodes in diagrams of generalization and specialization are considered as

a.

extension classes

b.

leaf classes

c.

inverted classes

d.

diverted classes

Discuss
Answer: (b).leaf classes
Q200.
The concept in which the shared subclass take over the relationship from multiple classes is considered as

a.

joint inheritance

b.

partial inheritance

c.

multiple inheritance

d.

independent inheritance

Discuss
Answer: (c).multiple inheritance
Page 20 of 31

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