Deck 10: Object-Oriented Systems Analysis and Design Using UML

Question 1

Which of the following is not described by a use case?

A)the actor that initiates an event
B)the use case that performs the actions
C)the event that triggers the use case
D)the objects required by the use case

Answer 1

D

Question 2

Which of the following is not one of the main components of UML?

A)things
B)relationships
C)entities
D)diagrams

Answer 2

C

Question 3

A private attribute on a class diagram:

A)does not change its value for different object instances.
B)is hidden from all classes except immediate subclasses.
C)is only available in the object.
D)is available to the class and all classes that have relationships with the attribute's class.

Answer 3

C

Question 4

When attributes are preceded by a minus sign,it means that:

A)the attributes are private.
B)the attributes are public.
C)the attributes are static.
D)the attributes are undefined.

Question 5

On an activity diagram,what is used to show parallel activities?

A)an arrow
B)a synchronization bar
C)a swimlane
D)a diamond

Question 6

Method overloading means that:

A)the same method may be defined differently in inherited classes.
B)the same method may be defined more than once in a given class.
C)the method may have parameters passed to it from more than one relating class.
D)the method may be used on different platforms,such as a server or client computer.

Question 7

Solid arrowheads used for messages on a sequence diagram represent:

A)inheritance relationships.
B)return parameters.
C)asynchronous messages.
D)synchronous calls.

Question 8

Which type of class represents real-world items?

A)entity
B)interface
C)abstract
D)control

Question 9

Behavioral diagrams include all of the following except:

A)activity diagrams.
B)communication diagrams.
C)class diagrams.
D)use case diagrams.
E)sequence diagrams.

Question 10

When classes are involved in inheritance,another name for a child class is:

A)a base class.
B)a derived class.
C)a superclass.
D)an instantiated class.

Question 11

Which of the following is not one of the six most commonly used UML diagrams?

A)activity diagram
B)CRC card relationship diagram
C)use case diagram
D)statechart diagram

Question 12

On an activity diagram,what is used to show partitioning?

A)a synchronization bar
B)a swimlane
C)a diamond
D)a filled-in circle

Question 13

Which of the following is a structural diagram?

A)use case diagram
B)statechart diagram
C)sequence diagram
D)class diagram

Question 14

A mechanism for communicating between a server and a mainframe computer is called a:

A)message queue.
B)swimlane.
C)synchronization bar.
D)EBCDIC conversion unit.

Question 15

Which of the following is the main goal of the object-oriented approach?

A)maintaining systems
B)minimizing the impact of change
C)reusability
D)functional control

Question 16

A template that the analyst may use when beginning to model or talk about the system from an O-O perspective is called a:

A)CRC card.
B)UML descriptor.
C)whole-part structure.
D)design layer.
E)User Message Language.

Question 17

Which of the following is not a format for sending messages between classes on a sequence diagram?

A)messageName( )
B)messageName(parameter1,parameter2)
C)messageName(parameter1:returnValue,parameter2:returnValue)
D)messageName(parameterType:parameterName(defaultValue))

Question 18

What is used to show time ordering on a communication diagram?

A)a sequence number
B)a synchronous arrow
C)an asynchronous arrow
D)a focus of control

Question 19

On a sequence diagram,a lateral bar or vertical rectangle is used to represent:

A)messages sent between classes.
B)the time sequence of activities.
C)the focus of control,when an object is busy doing things.
D)the lifeline for the class or object.

Question 20

Which of the following are not shown on an activity diagram?

A)classes
B)events
C)decisions that are made
D)sequence of activities

Question 21

A statechart diagram is created for:

A)a single class.
B)a single use case.
C)an activity on an activity diagram.
D)a group of classes connected with relationships.

Question 22

Which of the following is not a way to store and retransmit data from a Web page?

A)Store the information in a cookie.
B)Include the information in the URL.
C)Store the data in a message queue.
D)Include the data in a hidden field.

Question 23

Which type of class cannot be directly instantiated?

A)entity
B)interface
C)abstract
D)control

Question 24

________ show the same information as a sequence diagram.

A)Communication diagrams
B)Concept diagrams
C)Structural diagrams
D)Behavioral diagrams.

Question 25

Which type of class acts as a coordinator when implementing classes?

A)entity
B)interface
C)abstract
D)control

Question 26

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

Question 27

CRC stands for class,requirements,and collaborators.

Question 28

UML consists of things,relationships,and diagrams.

Question 29

________ describe the interactions of two or more things that perform a behavior that is more than any one of the things can do alone.

A)Communication diagrams
B)Concept diagrams
C)Structural diagrams
D)Behavioral diagrams.

Question 30

Object-oriented techniques work well in situations where ________ information systems are undergoing continuous maintenance,adaptation,and redesign.

A)complicated
B)simple
C)highly technical
D)global

Question 31

A ________,________,and ________ card may be used when the analyst is beginning to model or talk about the system from an O-O perspective.

A)class; responsibilities; collaborators
B)class; responsibilities; collections
C)class; revisions; collaborators
D)collection; responsibilities; collaborators

Question 32

The term ________ is used when an object is created from a class.

A)class
B)updated
C)made
D)instantiate

Question 33

________ reduces programming labor by reusing common objects easily.

A)Inheritance
B)Dower
C)Parenting
D)Settlement

Question 34

When one class is created from another class it is called:

A)inheritance.
B)dower.
C)parenting.
D)settlement.

Question 35

Objects are represented by and grouped into ________ that are optimal for reuse and maintainability.

A)objects
B)views
C)classes
D)displays

Question 36

When using inheritance,the child class is also known as a ________ class.

A)parent
B)derived
C)primary
D)secondary

Question 37

Which type of class provides a means for users to work with the system?

A)entity
B)boundary or interface
C)abstract
D)control

Question 38

Objects are part of a general concept called classes.

Question 39

________ diagrams are used to model the static structural design view of a system.

A)Class
B)Concept diagrams
C)Structural diagrams
D)Behavioral diagrams.

Question 40

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

Question 41

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

Question 42

A deployment diagram shows the physical implementation of the system.

Question 43

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

Question 44

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

Question 45

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

Question 46

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

Question 47

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

Question 48

Partitioning on an activity diagram is shown using swimlanes.

Question 49

Behavioral things describe how things work.

Question 50

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

Question 51

An abstract class cannot be directly instantiated.

Question 52

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

Question 53

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

Question 54

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

Question 55

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

Question 56

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

Question 57

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

Question 58

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

Question 59

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

Question 60

Transient objects do not survive the end of session.

Question 61

List the diagrams included in behavioral diagrams.

Question 62

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

Question 63

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

Question 64

An entity class represents real-world items.

Question 65

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

Question 66

A public attribute is only available in the object.

Question 67

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

Question 68

Temporal events occur at a predetermined time.

Question 69

What is polymorphism?

Question 70

A boundary class acts as a coordinator when implementing classes.

Question 71

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

Question 72

What is UML? What are the three major elements of UML?

Question 73

Component diagrams show a bird's-eye view of the system architecture.

Question 74

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

Question 75

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

Question 76

An abstract class cannot be directly instantiated.

Question 77

List the and describe four categories into which classes fall.

Question 78

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

Question 79

Describe the difference between a class and an object.

Question 80

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