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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 8 of 31

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Q71.
A subtype entity name should be which of the following?

a.

A singular noun

b.

Specific to the organization

c.

Concise

d.

All of the above

Discuss
Answer: (d).All of the above
Q72.
Inheritance is which of the following?

a.

When a supertype entity inherits values of the subtype attribute

b.

When a subtype entity inherits values of the supertype attribute

c.

When a supertype entity inherits values of another supertype attribute

d.

When a subtype entity inherits values of another subtype attribute

Discuss
Answer: (b).When a subtype entity inherits values of the supertype attribute
Q73.
Use of a supertype/subtype relationship is necessary when which of the following exists?

a.

An instance of a subtype participates in a relationship that is unique to that subtype.

b.

An instance of a subtype participates in a relationship that is the same as the other subtypes.

c.

Attributes apply to all of the instances of an entity type.

d.

No attributes apply to any of the instances of an entity type.

Discuss
Answer: (a).An instance of a subtype participates in a relationship that is unique to that subtype.
Q74.
When an entity instance must be a member of only one subtype, it is which of the following?

a.

Disjoint with total specialization

b.

Disjoint with partial specialization

c.

Overlap with total specialization

d.

Overlap with partial specialization

Discuss
Answer: (a).Disjoint with total specialization
Q75.
When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?

a.

Disjoint with total specialization

b.

Disjoint with partial specialization

c.

Overlap with total specialization

d.

Overlap with partial specialization

Discuss
Answer: (c).Overlap with total specialization
Q76.
Which of the following is not one of the three ways to classify an action assertion?

a.

Condition

b.

Integrity Control

c.

Authorization

d.

Enabler

Discuss
Answer: (d).Enabler
Q77.
An action assertion must include which of the following?

a.

Anchor object

b.

Action

c.

Corresponding object

d.

All of the above.

Discuss
Answer: (d).All of the above.
Q78.
Which of the following statements concerning business rules is true?

a.

It should be complex.

b.

It should not be convertible to computer code.

c.

It may include restrictions.

d.

All of the above.

Discuss
Answer: (c).It may include restrictions.
Q79.
Which one of the following symbols is not used in an ERD?

a.

Rectangle

b.

Oval

c.

Diamond

d.

Circle

Discuss
Answer: (d).Circle
Q80.
Specialization is which of the following processes?

a.

Defining one or more subtypes of the supertype and forming supertype/subtype relationships.

b.

Defining one or more supertypes of the subtype and forming supertype/subtype relationships.

c.

Defining one or more subtypes of the supertype and not forming supertype/subtype relationships.

d.

Defining one or more supertypes of the subtype and not forming supertype/subtype relationships.

Discuss
Answer: (a).Defining one or more subtypes of the supertype and forming supertype/subtype relationships.
Page 8 of 31

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