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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 16 of 31

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Q151.
The weak entities are used in entity relationship diagrams and are denoted by

a.

double rectangles

b.

double square

c.

double ovals

d.

double squares

Discuss
Answer: (a).double rectangles
Q152.
The databases which are used to represent reference attributes are classified as

a.

ternary databases

b.

string databases

c.

floating databases

d.

object databases

Discuss
Answer: (d).object databases
Q153.
The Universal Modeling Language in database management system is classified as

a.

object modeling methodology

b.

query modeling methodology

c.

entity modeling methodology

d.

attribute modeling methodology

Discuss
Answer: (a).object modeling methodology
Q154.
In the entity-relationship diagram, the partial key is sometimes also called

a.

subordinate

b.

discriminator

c.

incremental

d.

Cartesian ordinate

Discuss
Answer: (b).discriminator
Q155.
In ER diagrams, the existence dependency is shown by

a.

double dotted line

b.

triple dotted line

c.

single line

d.

double line

Discuss
Answer: (d).double line
Q156.
In entity set, the type of attribute having distinct values for specific entity is classified as

a.

functional attribute

b.

logical attribute

c.

key entity

d.

key attribute

Discuss
Answer: (d).key attribute
Q157.
In E-R diagrams, the relationship type with three degrees is classified as

a.

binary relationship

b.

ternary relationship

c.

extension association

d.

intension association

Discuss
Answer: (b).ternary relationship
Q158.
In relational databases, the key which are considered as type of reference attribute is classified as

a.

foreign keys

b.

composite keys

c.

string keys

d.

floating keys

Discuss
Answer: (a).foreign keys
Q159.
The step of high level conceptual models designing in which the data requirements are documented by interviewing database users is

a.

host server analysis

b.

requirement collection and analysis

c.

client server analysis

d.

entity attribute analysis

Discuss
Answer: (b).requirement collection and analysis
Q160.
The kind of entities without any key attributes are classified as

a.

weak entity

b.

strong entity

c.

single entity

d.

foreign entity

Discuss
Answer: (a).weak entity
Page 16 of 31

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