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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 19 of 31

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Q181.
According to enhanced-entity relationships, the association between super class and subclass is as

a.

super class is subset of subclass

b.

subclass is subset of super class

c.

subclass is partial joint of super class

d.

super class is partial joint of subclass

Discuss
Answer: (b).subclass is subset of super class
Q182.
The possible specialization constraint includes

a.

disjoint and total

b.

overlapping and total

c.

overlapping and partial

d.

all of above

Discuss
Answer: (d).all of above
Q183.
The hierarchy in which each subclass participates in one subclass relationship is classified as

a.

specialization hierarchy

b.

generalization hierarchy

c.

jointness hierarchy

d.

disjoint hierarchy

Discuss
Answer: (a).specialization hierarchy
Q184.
The type of lattice in which a subclass can be class or subclass in more than one association of subclasses is classified as

a.

attribution lattice

b.

specialization lattice

c.

generalization lattice

d.

disjoint lattice

Discuss
Answer: (b).specialization lattice
Q185.
In the process of specialization, the subclasses are attached by

a.

lines

b.

dotted lines

c.

red lines

d.

red dotted lines

Discuss
Answer: (a).lines
Q186.
The kind of subclass on which the entity become part of subclass by putting some condition on attribute values is classified as

a.

predicate segregation subclass

b.

predicate aggregation subclass

c.

predicate-defined subclass

d.

indicate-defined subclass

Discuss
Answer: (c).predicate-defined subclass
Q187.
The kind of subclass in which there are no constraints for deciding membership in any given subclass is classified as

a.

visual subclass

b.

user-defined subclass

c.

member subclass

d.

local subclass

Discuss
Answer: (b).user-defined subclass
Q188.
Considering the knowledge representation and conceptual modeling, the reasoning mechanisms are classified as part of

a.

functional modeling

b.

concrete modeling

c.

knowledge representation

d.

conceptual modeling

Discuss
Answer: (c).knowledge representation
Q189.
The main constraints applicable in specialization are

a.

disjointness constraint

b.

incomplete constraint

c.

completeness constraint

d.

both a and c

Discuss
Answer: (d).both a and c
Q190.
In the modeling of union type classes, the total category of super class is represented by

a.

triple line

b.

double line

c.

single line

d.

inverted comma

Discuss
Answer: (b).double line
Page 19 of 31

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