Deck 14: The Movement to Objects

Question 1

The principle of information hiding suggests that only ________________ be published to the user of the module.

A)the information required to use a software module
B)the class name
C)the object's name
D)the method
E)the common attributes

Answer 1

A

Question 2

Object-Oriented programming languages can have both:

A)attributes and examples
B)classes and cases
C)processes and products
D)instances and outflows
E)methods and attributes

Answer 2

E

Question 3

Brett Bradanini and Tim O'Sullivan are 'students'.In this case,'students' would be considered:

A)a concrete class
B)an abstract class
C)an instance of students
D)an aggregate class
E)an attribute of Brett and Tim

Answer 3

A

Question 4

A(n)__________ is the general template that is used to define and create specific instances.

A)Polymorphism
B)Inheritance
C)Class
D)Object
E)UML

Question 5

Dynamic binding is a technique that delays identifying the type of object until ____ .

A)the module is compiled
B)the object is encapsulated
C)the methods are inherited
D)run time
E)pre-processing

Question 6

When common sets of attributes and methods are organized into superclasses (or abstract classes)(like Student)and then subclasses (like Business Student)this action is referred to as ______________.

A)information hiding
B)object methods
C)encapsulation
D)inheritance
E)cohesion

Question 7

Polymorphism is made possible through ___________________-

A)information hiding
B)aggregation
C)dynamic binding
D)encapsulation
E)object-linking-and-embedding

Question 8

Methods implement an object's __________-

A)attributes
B)behavior
C)properties
D)size
E)screen location

Question 9

Object oriented systems analysis and design is more feasible than ever today due to:

A)The increased speed of processors and storage (and decrease in cost - aka "Moore's Law")
B)Textbooks on object oriented analysis and design
C)The recent discovery by Bill Gates of the object oriented paradigm
D)Graphical User Interfaces
E)Neo's use of object orientated SA&D in the Matrix

Question 10

A(n)_________ is an instantiation of a class.

A)GUI
B)Object-Oriented Foundation
C)Object
D)Template
E)Prism

Question 11

The combining of process and data into a single entity is called:

A)aggregation
B)abstraction
C)encapsulation
D)inheritance
E)attributation

Question 12

Brett Bradanini and Tim O'Sullivan are 'students'.In this case,Brett and Tim would be considered:

A)concrete classes
B)abstract classes
C)instances of students
D)polymorphism of students
E)encapsulation of students

Question 13

An object's behavior is implemented by:

A)Actor
B)Class
C)Method
D)Attribute
E)Process

Question 14

_______________ means that the same message can be interpreted differently by different classes of objects.

A)encapsulation
B)inheritance
C)abstraction
D)polymorphism
E)aggregation

Question 15

A(n)_________ (or object)is a specific case of a class.

A)Template
B)Instance
C)Prototype
D)Polymorphism
E)Object

Question 16

According to the developers of UML,any object-oriented approach to developing information systems must be: (a)use case driven;(2)architecture centric and ________________

A)process and data oriented
B)top-down
C)bottom-up
D)unified
E)iterative and incremental

Question 17

Each object has ___________ that describe information about the object.

A)Data flows
B)Data stores
C)Entities
D)Instances
E)Attributes

Question 18

Attributes describe information about the ________ such as professor's name,office,office hours,classes,phone number and e-mail.

A)entity
B)object
C)class
D)database
E)process

Question 19

Arianna has a superclass called 'Person',an abstract subclass called 'Student' and a concrete class called 'Information Systems Student'.Which of the following would be correct?

A)Person is 'a-kind-of' student;student is 'a-kind-of' information systems student
B)information system student is 'a-kind-of' student;student is 'a-kind-of' person
C)Person is 'a-kind-of' information system student;student is 'a-kind-of' of person
D)Information system student is 'a-kind-of' person;person is 'a-kind-of' of student
E)Student is 'a-kind-of' person;person is 'a-kind-of' information system student
Response: see Inheritance

Question 20

Generally object-oriented approaches are most associated with ___________.

A)the waterfall methodology
B)an iterative development RAD methodology
C)the parallel development methodology
D)the V-model methodology
E)the use-case methodology

Question 21

The four fundamental UML diagrams replace _______________ in the traditional SDLC.

A)User interface scenarios
B)Data flow diagrams and entity relationship diagrams
C)Observation,documentation analysis and questionnaires
D)legacy and network databases
E)nothing (they supplement,but do not replace)

Question 22

Classes inherit the attributes and methods from the subclasses underneath them.

Question 23

Architecture centric means that the underlying architecture of the evolving system ____.

A)is based on Intel X'86 chips
B)is based on client server architecture
C)drives the specification,construction and documentation of the system
D)fully implements all graphical user interfaces of windows,icons,menus and pointers (WIMP)
E)has been approved by the Web 2.0 consortium

Question 24

The concept that says the same message can be interpreted differently by different classes of objects is called 'encapsulation'.

Question 25

Because of polymorphism,inserting a new 'student' and inserting a new 'professor' can be done by sending an 'insert' message to each of the objects (student and professor)and letting that object interpret the message.

Question 26

The 'actor' in an UML use case diagrams:

A)is similar to an external entity on a DFD
B)is similar to a data store on a DFD
C)is similar to a process on a use case
D)is similar to polymorphism
E)is similar to encapsulation

Question 27

Which is NOT one of the four dominant UML diagramming techniques?

A)Use case diagrams
B)Class diagrams
C)Encapsulation diagrams
D)Sequence diagrams
E)Behavioral state machine diagrams

Question 28

As systems analysts have worked with projects and the Systems Development Life Cycle for many years,they have found that about 35% of all projects do not require analysts to model the business needs and to gather business requirements.

Question 29

Actual techniques and approaches that analysts and developers use have remained largely unchanged over time.

Question 30

In UML Class Diagrams,'generalizations'

A)Are illustrated with double dashed lines
B)Shows that one class (subclass)inherits from another class (superclass)
C)Come from extending use cases through normalization
D)Are fully defined versions of actors
E)Are all of these

Question 31

Encapsulation is the combining of DFDs and ERDs into a physical use-case.

Question 32

The process of letting the object-oriented system decide on the specific method when the system is running is called 'static binding'.

Question 33

An object is an attribute of an instantiation.

Question 34

The main building block of the UML class diagram is the class which _____________.

A)portrays actors and actions
B)identifies entities and attributes
C)stores and manages information
D)demonstrates if-else-if-else structures
E)shows sequence,repetition and selection

Question 35

Generally speaking,which of the four fundamental UML diagrams is created last?

A)Use case diagrams
B)Class diagrams
C)Sequence diagrams
D)Behavioral state diagrams
E)Encapsulation diagram

Question 36

Which of the four fundamental UML diagrams is created first?

A)Use case diagrams
B)Class diagrams
C)Sequence diagrams
D)Behavioral state diagrams
E)Encapsulation diagram

Question 37

The relationship between the class (e.g. ,Student)and its superclass (e.g. ,Person)is known as the 'a-kind-of' relationship.So the class 'Student' is 'a-kind-of' 'Person'.

Question 38

Why are use cases inherently simple?

A)because they only have data and processes
B)because they only have entities and attributes
C)because they use UML 2.0
D)because they focus on only one activity at a time
E)because they are concrete classes

Question 39

UML Use Cases are connected to actors through:

A)data flows
B)association relationships
C)protected attributes
D)bimodal accesses
E)external affairs

Question 40

Concrete classes are classes that have instances.

Question 41

Class diagrams have four parts: class name at the top;attributes in the middle,actors in the bottom and boundaries drawn around them.

Question 42

The primary difference between a traditional approach like structured design and an object-oriented approach is based on the preference (or requirements)of the project sponsor or project champion.

Question 43

The UML use case diagram is typically used to summarize the set of use cases (from the traditional SDLC)for a logical part of the system.

Question 44

According to the creators of UML,any object-oriented approach to developing information systems must be: (a)use case driven;(b)architecture centric and (c)iterative and incremental.

Question 45

A behavioral state machine diagram is one of the four fundamental UML diagrams.

Question 46

A primary purpose of the class diagram is to show the associations or relationships that classes have with one another.

Question 47

Aggregation is used when one class (subclass)inherits from another class (superclass)meaning that the properties and operations of the superclass are also valid for objects of the subclass.

Question 48

Of the four fundamental UML diagrams,the Class Diagram is always created first.

Question 49

UML is a truly new methodology and will replace the traditional SDLC.

Question 50

What is a 'method' in the object-oriented approach?

Question 51

The UML Class Diagrams show what objects contain and how they are related - much like ERD diagrams in a structured design approach.

Question 52

What is the relationship between classes,objects,and attributes?

Question 53

When an UML use case takes the functionality of another use case and adapts it,it could be either an 'extends relationship' or an 'incorporates relationship'.

Question 54

Two methods of simplifying complex class diagrams might be to use 'views' and to use 'packages'.

Question 55

RUP stands for the Rational Unified Process.

Question 56

There are three kinds of operations that a class can contain: constructor operation;query operation;and update operation.

Question 57

The use case on an UML Use Case Diagram is a rectangle and depicts a major process.

Question 58

RUP emphasizes iterative,incremental development and prototyping.

Question 59

A behavioral state machine UML diagram is a static model of a single state with one and only one method.

Question 60

The UML Sequence Diagrams are generally developed last in the UML approach.

Question 61

What are elements of a Sequence Diagram?

Question 62

What are the major benefits of Object-Oriented Systems Analysis and Design?

Question 63

What are elements of an UML Class Diagram?

Question 64

What is inheritance? Give an example.

Question 65

What is polymorphism? Give an example.

Question 66

What are the four fundamental UML diagrams? And in which order do you generally see them developed?

Question 67

What are elements of a UML Use Case Diagram?