Answered: See the class diagram (UML2.0) and the…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

See the class diagram (UML2.0) and the relationship between classes Person and Professor. What sentence describes this relationship correctly?

Select one:

a. The relationship links two classes. The relationship represents a generalization and specialization princip. One class is representing a general description and the second one is more detailed.

b. The relationship links two classes. The relationship is weak and instances of classes are not affected by destroying instance on the other side of relationship.

c. The relationship links two classes. The relationship is weak and when the container class instance is destroyed the contents class instatnce is not destroyed.

d. The relationship links two classes. The relationship is very strong and when the container class instance is destroyed the contents class instatnce is destroyed too.

Person
Address
Name
Street
1.1
Phone Number
Lives at > City
1.1
Email Address
State
Postal Code
Purchase Parking Pass()
Country
Validate()
Output As Label()
Student
Professor
Student Number
Salary
Average Mark
M.1
Is Eligibale To EnrolK()
Is a main professor
Get Seminars Taken()
SchoolClass
Enrolment
Name
10..1
0.

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