QUESTION 21 Which of the following statements about the given diagram are true? A B The chains of aggregation links form a directed, acyclic graph. A is part of B. If an instance of A is deleted, the contained instances of B are not affected. If an instance of B is deleted, all contained instances of A are also deleted. QUESTION 22 You are given the following clipping of a UML2 class diagram. Which of the following statements are true? {abstract} с A + e: String - f: int #g: boolean B +x: int D +y: int - z: String An instance of A can see y. Objects of B and D can see g. E
QUESTION 21 Which of the following statements about the given diagram are true? A B The chains of aggregation links form a directed, acyclic graph. A is part of B. If an instance of A is deleted, the contained instances of B are not affected. If an instance of B is deleted, all contained instances of A are also deleted. QUESTION 22 You are given the following clipping of a UML2 class diagram. Which of the following statements are true? {abstract} с A + e: String - f: int #g: boolean B +x: int D +y: int - z: String An instance of A can see y. Objects of B and D can see g. E
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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Transcribed Image Text:QUESTION 21
Which of the following statements about the given diagram are true?
A
B
The chains of aggregation links form a directed, acyclic graph.
A is part of B.
If an instance of A is deleted, the contained instances of B are not affected.
If an instance of B is deleted, all contained instances of A are also deleted.
QUESTION 22
You are given the following clipping of a UML2 class diagram. Which of the following statements are true?
{abstract}
с
B
+x: int
000
A
+e: String
- f: int
#g: boolean
An instance of A can see y.
Objects of B and D can see g.
QUESTION 23
D
oka
Objects of C and B can see f.
An object of A may or may not contain objects of C.
R
With which use cases does actor U communicate - no matter if other actors are also involved?
R
B
C
с
+y: int
- z: String
بك
B
E
«include>> |
«include>>
с
OKOK-
옷
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