Question 1

When using UML to create state diagrams, state change is denoted by ____.

Accepted Answer

A) Arrows with labels that connect rectangles. 
B) Double arrows with labels that connect rectangles. 
C) An oval between two rectangles, connected with arrows. 
D) Dividing the state rectangle into several parts, one for each state change. 
A) Arrows with labels that connect rectangles. 
B) Double arrows with labels that connect rectangles. 
C) An oval between two rectangles, connected with arrows. 
D) Dividing the state rectangle into several parts, one for each state change.

Question 2

You are designing a software solution for a veterinary clinic.The clinic provides various services for each pet on each visit.You have decided that the following classes are needed: Customer, Address, Pet, and Visit.Which of these should be represented as aggregation?

Accepted Answer

A) Customer class aggregates Address, Pet, and Visit classes. 
B) Visit class aggregates Address class. 
C) Pet class aggregates Address class. 
D) Pet class aggregates Customer class. 
A) Customer class aggregates Address, Pet, and Visit classes. 
B) Visit class aggregates Address class. 
C) Pet class aggregates Address class. 
D) Pet class aggregates Customer class.

Question 3

A CRC card describes ____.

Accepted Answer

A) A class, its responsibilities, and its collaborating classes. 
B) A class, its methods, and its constructors. 
C) A class, its relationships, and its collaborating classes. 
D) A class, its requirements, and its concurrent classes. 
A) A class, its responsibilities, and its collaborating classes. 
B) A class, its methods, and its constructors. 
C) A class, its relationships, and its collaborating classes. 
D) A class, its requirements, and its concurrent classes.

Question 4

Consider the following code snippet:   Which of the following statements correctly describes the relationship between the Motorcycle and Vehicle classes?

Accepted Answer

A) Motorcycle exhibits the has-a relationship with regards to Vehicle. 
B) Motorcycle exhibits the is-a relationship with regard to Vehicle. 
C) Vehicle exhibits the has-a relationship with regards to Motorcycle. 
D) Vehicle exhibits the is-a relationship with regards to Motorcycle. 
A) Motorcycle exhibits the has-a relationship with regards to Vehicle. 
B) Motorcycle exhibits the is-a relationship with regard to Vehicle. 
C) Vehicle exhibits the has-a relationship with regards to Motorcycle. 
D) Vehicle exhibits the is-a relationship with regards to Motorcycle.

Question 5

A class (ClassOne) is considered to have a dependency on another class (ClassTwo) under which of the following conditions?

Accepted Answer

A) Each class uses objects of the other. 
B) The public interfaces of both classes are cohesive. 
C) ClassTwo uses objects of ClassOne. 
D) ClassOne uses objects of ClassTwo. 
A) Each class uses objects of the other. 
B) The public interfaces of both classes are cohesive. 
C) ClassTwo uses objects of ClassOne. 
D) ClassOne uses objects of ClassTwo.

Question 6

In general, you need ____ when an object needs to remember another object between method calls.

Accepted Answer

A) Inheritance 
B) Aggregation 
C) Association 
D) An interface implementation 
A) Inheritance 
B) Aggregation 
C) Association 
D) An interface implementation

Question 7

Given the following diagram showing class relationships:   What type of relationship is shown between Invoice and Product?

Accepted Answer

A) Product inherits from Invoice. 
B) Product aggregates Invoice. 
C) Invoice inherits from Product. 
D) Invoice is dependent on Product. 
A) Product inherits from Invoice. 
B) Product aggregates Invoice. 
C) Invoice inherits from Product. 
D) Invoice is dependent on Product.

Question 8

Consider the following code snippet:   This code is best described as an example of ____.

Accepted Answer

A) Inheritance and multiplicities. 
B) Aggregation and association. 
C) Inheritance and aggregation. 
D) Association and multiplicities. 
A) Inheritance and multiplicities. 
B) Aggregation and association. 
C) Inheritance and aggregation. 
D) Association and multiplicities.

Question 9

Which of the following code snippets denotes that the Rose class inherits from the Flower class?

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 10

In a UML diagram, the relationship symbol shown below denotes ____.

Accepted Answer

A) Inheritance 
B) Aggregation 
C) Dependency 
D) Interface implementation 
A) Inheritance 
B) Aggregation 
C) Dependency 
D) Interface implementation

Question 11

How do databases affect companies?

Accepted Answer

A) Lower cost of doing business 
B) Improve quality of service a company can offer 
C) Saves time 
D) All of the above. 
A) Lower cost of doing business 
B) Improve quality of service a company can offer 
C) Saves time 
D) All of the above.

Question 12

In a UML diagram, dependency is denoted by ____.

Accepted Answer

A) A dotted/dashed line with a closed arrow tip. 
B) A solid line with a closed arrow tip. 
C) A dotted/dashed line with an open arrow tip. 
D) A solid line with an open arrow tip. 
A) A dotted/dashed line with a closed arrow tip. 
B) A solid line with a closed arrow tip. 
C) A dotted/dashed line with an open arrow tip. 
D) A solid line with an open arrow tip.

Question 13

During the implementation phase, which of the following statements is true?

Accepted Answer

A) Method parameter variables are available from the CRC cards. 
B) Method parameter variables are available from the javadocs created during the design phase. 
C) You must determine the method parameter variables during implementation phase. 
D) Method parameter variables are available from the UML diagrams. 
A) Method parameter variables are available from the CRC cards. 
B) Method parameter variables are available from the javadocs created during the design phase. 
C) You must determine the method parameter variables during implementation phase. 
D) Method parameter variables are available from the UML diagrams.

Question 14

You are designing a software solution for an automobile rental company.You have decided that the following nouns apply to the requirements: Auto, Customer, Address, Rental Contract, Mileage, Rental Date, Daily Rate, Total.Which of these should be represented as classes?

Accepted Answer

A) All of them. 
B) Auto, Customer, Address, Rental Contract. 
C) Auto, Customer, Address, Rental Contract, Mileage. 
D) Auto, Customer, Address, Rental Contract, Mileage, Rental Date, Daily Rate. 
A) All of them. 
B) Auto, Customer, Address, Rental Contract. 
C) Auto, Customer, Address, Rental Contract, Mileage. 
D) Auto, Customer, Address, Rental Contract, Mileage, Rental Date, Daily Rate.

Question 15

When using UML to create state diagrams, a state is denoted by ____.

Accepted Answer

A) A rectangle with double border. 
B) A rectangle with rounded corners. 
C) An oval with double border. 
D) A standard rectangle with square corners. 
A) A rectangle with double border. 
B) A rectangle with rounded corners. 
C) An oval with double border. 
D) A standard rectangle with square corners.

Question 16

Given the following diagram showing class relationships:   What of the following best describes the type of relationship shown between Bank and Customer?

Accepted Answer

A) Customer aggregates Bank, indicating that a customer may deal with many banks. 
B) Bank aggregates Customer, indicating that a bank may deal with many customers. 
C) Bank depends on Customer, indicating that a bank may deal with many customers. 
D) Customer depends on Bank, indicating that a customer may deal with many banks. 
A) Customer aggregates Bank, indicating that a customer may deal with many banks. 
B) Bank aggregates Customer, indicating that a bank may deal with many customers. 
C) Bank depends on Customer, indicating that a bank may deal with many customers. 
D) Customer depends on Bank, indicating that a customer may deal with many banks.

Question 17

What is a general naming convention for a class?

Accepted Answer

A) The name for such a class should be an adjective that describes the concept 
B) The name for such a class should be a noun that describes the concept 
C) The name for such a class should be a verb that describes the concept 
D) None of the above 
A) The name for such a class should be an adjective that describes the concept 
B) The name for such a class should be a noun that describes the concept 
C) The name for such a class should be a verb that describes the concept 
D) None of the above

Question 18

UML means____.

Accepted Answer

A) Unified Mode Language 
B) User Modeling Language 
C) User Mode Language. 
D) Unified Modeling Language. 
A) Unified Mode Language 
B) User Modeling Language 
C) User Mode Language. 
D) Unified Modeling Language.

Question 19

Which of the following code snippets denotes that the Kitchen class aggregates the Dish class?

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 20

Given the following diagram showing class relationships:   What type of relationship is shown between BankAccount and Customer?

Accepted Answer

A) Customer aggregates BankAccount, indicating that a customer may have 2 bank accounts. 
B) BankAccount aggregates Customer, indicating that 2 customers may share a bank account. 
C) BankAccount depends on Customer, indicating that many customers may have 2 bank accounts. 
D) Customer depends on BankAccount, indicating that a customer may have 2 bank accounts. 
A) Customer aggregates BankAccount, indicating that a customer may have 2 bank accounts. 
B) BankAccount aggregates Customer, indicating that 2 customers may share a bank account. 
C) BankAccount depends on Customer, indicating that many customers may have 2 bank accounts. 
D) Customer depends on BankAccount, indicating that a customer may have 2 bank accounts.

Exam 12: Object-Oriented Design

When using UML to create state diagrams, state change is denoted by ____.

You are designing a software solution for a veterinary clinic.The clinic provides various services for each pet on each visit.You have decided that the following classes are needed: Customer, Address, Pet, and Visit.Which of these should be represented as aggregation?

A CRC card describes ____.

Consider the following code snippet: Which of the following statements correctly describes the relationship between the Motorcycle and Vehicle classes?

A class (ClassOne) is considered to have a dependency on another class (ClassTwo) under which of the following conditions?

In general, you need ____ when an object needs to remember another object between method calls.

Given the following diagram showing class relationships: What type of relationship is shown between Invoice and Product?

Consider the following code snippet: This code is best described as an example of ____.

Which of the following code snippets denotes that the Rose class inherits from the Flower class?

In a UML diagram, the relationship symbol shown below denotes ____.

How do databases affect companies?

In a UML diagram, dependency is denoted by ____.

During the implementation phase, which of the following statements is true?

You are designing a software solution for an automobile rental company.You have decided that the following nouns apply to the requirements: Auto, Customer, Address, Rental Contract, Mileage, Rental Date, Daily Rate, Total.Which of these should be represented as classes?

When using UML to create state diagrams, a state is denoted by ____.

Given the following diagram showing class relationships: What of the following best describes the type of relationship shown between Bank and Customer?

What is a general naming convention for a class?

UML means____.

Which of the following code snippets denotes that the Kitchen class aggregates the Dish class?

Given the following diagram showing class relationships: What type of relationship is shown between BankAccount and Customer?

Introduction

Using Objects

Implementing Classes

Fundamental Data Types

Decisions

Loops

Arrays and Array Lists

Designing Classes

Inheritance

Interfaces

Input/Output and Exception Handling

Recursion

Sorting and Searching

The Java Collections Framework

Basic Data Structures

Tree Structures

Generic Classes

Stream Processing

Graphical User Interfaces

Advanced Input/Output

Multithreading

Internet Networking

Relational Databases

XML

Filters