OOAD QUESTIONS

1. Realization of a use case is specified by _ _ _ _ _ _ _ __ _

Ans: A collaboration

2. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ relationship between use cases means that the base use case explicitly incorporates the behavior of another use case at a location specified in the base.

Ans: Include

3. _ _ _ _ _ _ _ _ _ captures the intended behavior of a system

Ans: Use Case

4. A Use case captures _ _ _ _ _ _ _ _ _ _ of a system

Ans:  Behavior

5. Extend relationship is rendered using _ _ _ _ _ _ _ _ _ _

Ans:  Dependency relationship

6. A use case is rendered as

Ans: An ellipse

7. The names of use cases are generally given as

Ans: Verb pharases

8. Actors are connected to use cases only by

Ans: Association relationship

9. _ _ _ _ _ _ _ _ _ _ represents a role that plays within a system

Ans: Actor

10. The behavior of a use case is specified by _ _ _ _ _ _ _ _ _ _ _

Ans: Flow of events

11. _ _ _ _ _ _ _ _ _ _ provide services to the system under design

Ans: Supporting Actor

12. _ _ _ _ _ _ _ _ uses the services of the system under design to fulfill the goals

Ans:  Primary Actor

13. _ _ _ _ _ _ are the stories of using a system to meet the goals

Ans:  Use Cases

14. The idea of use cases to describe the functional requirements was introduced by

Ans:  Ivar Jacobson

15. _ _ _ _ _ _ _ _ state ``what must always'' be true beginning a scenario in the use case

Ans: Pre-conditions

16. _ _ _ _ _ _ _ _ _ _ is used to graphically represent the flow of events of a use case

Ans: sequence diagram

17. _ _ _ _ _ _ _ _ _ _ _ _ is used to structure the behavioral things in a model

Ans:  Use case

18. _ _ _ _ _ _ defines a promise or contract of how a system will behave

Ans:  Use Case

19. Extension scenarios are also called as

Ans: Alternative Flows

20. Which of the following is used to organize the use cases

Ans: Generalization

21. Which of the following is a valid actor for credit card validation system?

Ans: Retail Institution

22. In a Use Case Diagram, use cases are adorned with _ _ _ _ _ _ _ _ _ _ _ _ _ to assert nonfunctional

requirements

Ans: Notes

23. Which of the following diagram view the whole system as a block box?

Ans:  Use Case Diagram

24. Actors similar to one another are organized using _ _ _ _ _ _ _ _ relationship

Ans: Generalization

25. Which of the following is NOT present in a Use Case Diagram?

Ans:  Collaboration

26. _ _ _ _ _ _ _ diagram is used to model the requirements of a system

Ans: Use Case Diagram

27. In Use Case Diagrams, common behavior of actors are generally named as

Ans: Use Cases

28. _ _ _ _ _ relationship is NOT present in a Use Case Diagram

Ans:  Realization Relationship

29. The behavior of a system is modeled using _ _ _ _ _ _ _ _ _ _

Ans:  Use Case Diagram

30. Use Case Diagrams are used to model _ _ _ _ _ view of a system

Ans:  Use Case View

31. In an Activity Diagram, transitions belongs to

Ans: Completion Transitions

32. Which of the following is NOT present in an Activity Diagram?

Ans: Events

33. In UML, activity state is graphically rendered as

Ans: A lozenge shape

34. Executable non atomic computations are called as

Ans:  Activity States

35. Activity diagram is a special kind of  

Ans: State Chart Diagram

36. Executable atomic computations are called as

Ans: Action States

37. Activity diagram is used to model _ _ _ _ _ aspects of a system

Ans:  Dynamic aspects

38. _ _ _ _ _ is a path from one activity state to the next activity state

Ans: Transition

39. In UML, transition is graphically rendered as

Ans: A Directed line

40. _ _ _ _ _ _ _ _ _ may have two or more incoming transitions and one outgoing transition

Ans: Join

41. While modeling an operation, use forking and joining only if the operation is owned

Ans: An Active Class

42. Animation of a model against the execution of a deployed system is an example of

Ans: Reverse Engineering

43. Objects placed in an Activity Diagram are connected to the activity or transition using _ _ _ _ _ _

_ _ _ _ _ _ relationship

Ans:  Dependency

44. Forward Engineering is possible for an Activity Diagram especially if the context of the diagram is

_ _ _ _ _ _ _ _ _

Ans:  An Operation

45. Pre-conditions of an initial state and post-conditions of a final state of the workflow are

important in modeling _ _ _ _ _ _

Ans: Boundaries of the workflow

46. Which of the following diagram is used to model business workflows?

Ans:  Activity Diagram

47. _ _ _ _ _ _ _ _ _ is used to represent concurrent flows in an Activity Diagram

Ans:  Synchronization bar

48. In an Activity Diagram, organizing the activities into groups is called

Ans:  Swim lane

49. _ _ _ _ _ _ _ _ _ diagram is used to model an operation

Ans:  Activity Diagram

50. Forward Engineering is the process of translating

Ans:  Model to Code

51. Consider the example of autonomous robot. Then which of the following is an example of an

External Event.

Ans:  Collision

52. Call Events are handled by

Ans:  A Method

53. Internal event occurs when

Ans: A method is invoked via a message

54. Which of the following is a change event

Ans: When (11:30AM)

55. In UML Exceptions are modeled as

Ans: Stereo Typed classes

56. _ _ _ _ _ _ _ _ _ _ are used to model records of activities that describe what happened in the past

or what needs to be done later.

Ans: Events

57. The Relationship between two states is called _ _ _ _ _ _ _ _ _ _ _

Ans: Transition

58. In UML signals are modeled as

Ans:  Stereo Typed classes

59. In UML _ _ _ _ _ _ _ _ _ _ keyword is used to model time events

Ans: After

60. Which of the following is an Asynchronous Event

Ans: Signal Event

61. A sequential state machine may have

Ans: At most one initial state and one final state

62. _ _ _ _ _ is used to show which one, out of a set of transitions actually fires on a particular

occasion

Ans: Guard Condition

63. Transitions that are handled without causing a change in state are called

Ans:  Internal Transitions

64. Which of the following is used to model the life time of an object

Ans: State Machine

65. Events that can cause transitions to fire are known

As

Ans: Triggers

66. State that is active after the completion of the transition is called

Ans: Target State

67. Which of the following is present in a nested concurrent state machine

Ans:  Concurrent sub state

68. The relationship between two states is called

Ans: Transition

69. Events that are not handled in that state but are postponed and queued for handling by the object

in another state are called as

Ans: Deferred Events

70. A state that is nested inside another state is called

Ans: Composite State

71. The behavior of an active class is specified by

Ans: A State Machine

72. The collaboration of active and passive objects is specified Using

Ans: Component Diagrams

73. Process view primarily addresses

Ans: Performance

74. In UML, processes are modeled as

 Ans: Stereotyped Active Classes

75. Which of the following is true regarding a process

Ans: It represents an independent flow of control

76. In UML _ _ _ _ _ _ _ _ _ is used to model each independent flow of control

 Ans:  Active Object

77. Which of the following is wrong with respect to a thread

Ans:  Threads are nested inside another thread

78. _ _ _ _ _ _ _ _ _ is used to model common families of processes or threads
Ans: Active class

79. Graphically an active class is rendered as a rectangle

With

 Ans:  Thick Lines

80. In UML, asynchronous message is rendered as _ _ _ _ _ _ _

Ans:  Half Arrow

81. Absolute time of an event is modeled as

Ans: Timing Constraint

82. Which of the following diagram is used to model object Migration

 Ans:  Collaboration Diagram

83. The allocation of an object to a new node is rendered

as

Ans:  a ``copy'' stereotyped message

84. _ _ _ _ _ _ _ _ _ _ _ _ _ is denotation for the time at which an event occurs

 Ans:  Timing mark

85. Graphically, location is rendered as

 Ans: A tagged value

86. Graphically, a timing constraint is rendered as

Ans:. A Constraint

87. Diagram is used to model the distribution of objects

Ans: Object Diagram

88. The deployment view of a system is modeled using

Ans:  Development Diagram

89. Time critical systems are called as

Ans:  Real time Systems

90. Which of the following evaluates to an absolute

value of Time?

Ans: Timing Expression

91. A state machine whose actions are all attached to states is called

 Ans:  Moore machine

92. State independent means that the object responds

Ans: The same way to a different event

93. Which of the following is not present in a State Chart

Diagram?

Ans: Fork

94. Forward Engineering of a state chart diagram is possible especially if the context of the diagram

is

Ans: A Class

95. State chart Diagrams are needed

Ans:  When a class has complex life cycle

96. Which of the following diagram is used to model the dynamic aspects of a system

Ans:  State Chart Diagram

97. Executable atomic computations are called as

Ans:  Actions

98. diagram is used to model reactive objects.

Ans: Sate Chart Diagram

99. In UML, a state is graphically rendered as

Ans: Rounded rectangle

100. diagram is used to show the state space of a given

class.

Ans: State Chart Diagram