Chapter 10 (True or False)

Question 1

1) Objects are part of a general concept called classes.

Answer

true

Question 2

2) An object defines a set of shared attributes and behaviors found in each class for the object.

Answer

true

Question 3

3) In inheritance, the original or parent class is known as the derived class.

Answer

true

Question 4

4) CRC stands for class, requirements, and collaborators.

Answer

true

Question 5

5) UML consists of things, relationships, and diagrams.

Answer

true

Question 6

6) Behavioral things describe how things work.

Answer

true

Question 7

7) Structural diagrams are used to show the interaction between people and a use case.

Answer

true

Question 8

8) A use case model describes what a system does without describing how the system does it.

Answer

true

Question 9

9) The analyst should create use cases to define every system function, including queries and reports.

Answer

true

Question 10

10) An activity diagram shows the flow of information between two or more use cases.

Answer

true

Question 11

11) Partitioning on an activity diagram is shown using swimlanes.

Answer

true

Question 12

12) Swimlanes are useful to show how the data must be transmitted or converted.

Answer

true

Question 13

13) State transition diagrams illustrate a succession of interactions between classes or object instances over time.

Answer

true

Question 14

14) On a sequence diagram, a lateral bar or vertical rectangle shows the focus of control.

Answer

true

Question 15

15) A communication diagram shows the same thing as a state transition diagram.

Answer

true

Question 16

16) An entity class represents an entity on an entity-relationship diagram.

Answer

true

Question 17

17) An abstract class cannot be directly instantiated.

Answer

true

Question 18

18) An association class is used to represent whole/part relationships.

Answer

true

Question 19

19) Aggregation shows that the whole object is composed of the sum of its parts.

Answer

true

Question 20

20) Polymorphism means that the subclass may inherit a parent method but may add to it or modify it.

Answer

true

Question 21

21) A statechart diagram is created to show how several classes change each other's states.

Answer

true

Question 22

22) An asynchronous message is when the calling program waits for control to be returned to it.

Answer

true

Question 23

23) Transient objects do not survive the end of session.

Answer

true

Question 24

24) A deployment diagram shows the physical implementation of the system.

Answer

true

Question 25

25) The first iteration of analysis should be at a very low level to identify the system objects.

Answer

true

Question 26

26) A public attribute is only available in the object.

Answer

true

Question 27

27) An entity class represents real-world items.

Answer

true

Question 28

28) A boundary or interface class provides a means for users to work with the system.

Answer

true

Question 29

29) An abstract class cannot be directly instantiated.

Answer

true

Question 30

30) A boundary class acts as a coordinator when implementing classes.

Answer

true

Question 31

31) Cookies are the only way to store data on the client computer that will exist beyond the current session.

Answer

true

Question 32

32) Association classes are those that are used to break up a many-to-many association between classes.

Answer

true

Question 33

33) Aggregation provides a means of showing that the whole object is composed of the sum of its parts (other objects).

Answer

true

Question 34

34) Collection is the relationship that exists when the whole has a responsibility for the part.

Answer

true

Question 35

35) Polymorphism is when the object-oriented program may have several versions of the same method with the same name in a superclass/subclass relationship.

Answer

true

Question 36

36) When messages are passed from one class to another, the receiving class must have a method corresponding to the message name.

Answer

true

Question 37

37) A deferred event is one that is held until an object changes state to one that can accept the
event.

Answer

true

Question 38

38) Signals or synchronous messages occur when a program does not wait for a returning
message

Answer

true

Question 39

39) Temporal events occur at a predetermined time.

Answer

true

Question 40

40) Component diagrams show a global view of the system architecture.

Answer

true

Chapter 10 (True or False)

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