Unit 19 - KLO1

Multiple Choice

Which of the following is a type of modeling requirement used in a Software Requirements Document (SRD)?

• Activity diagram

• Risk analysis

• Technical manuals

• Budgeting

Open Ended

Why do we model system behavior?

Multiple Select

Which of the following are benefits of using UML?

• Understand system requirements

• Write programming code

• Visualize complex systems

• Document systems for future maintenance

Open Ended

Explain the difference between structural and behavioral UML diagrams.

Multiple Choice

Which of the following is a structural UML diagram?

• Class Diagram

• Activity Diagram

• Use-Case Diagram

• Sequence Diagram

Multiple Choice

What is the main purpose of an activity diagram?

• To show workflow and process logic

• To show object structure

• To show long-term data relationships

• To describe algorithms

Hotspot

Identify the final state.

Hotspot

Identify the initial state.

Hotspot

Identify guard.

Hotspot

Identify merge.

Multiple Choice

What is the main purpose of a class diagram?

• To show user steps

• To model the static structure of a system

• To display workflows

• To describe business processes

Multiple Choice

Which of the following is NOT a reason to use a class diagram?

• To identify classes, attributes, and methods

• To represent relationships

• To show business processes

• To help communicate software structure

Multiple Choice

Which section of a class diagram typically contains the class name?

• Top

• Middle

• Bottom

• Left

Multiple Choice

Which of the following are commonly included in the middle section of a class diagram?

• Attributes

• Class name

• Methods

• Relationships

Multiple Choice

Which relationship should be used when two classes work together but can exist independently?

• Association

• Composition

• Aggregation

• Inheritance

Multiple Choice

Given a scenario where a Teacher and Student both share common attributes and behaviors, but also have their own specific methods, which relationship is most appropriate to use in a class diagram?

• Association

• Aggregation

• Composition

• Inheritance

Multiple Select

Select all the relationships that indicate some form of ownership between classes in class diagrams.

• Association

• Aggregation

• Composition

• Inheritance

Multiple Choice

Which of the following relationships in class diagrams represents strong ownership, where the part cannot exist without the whole?

• Association

• Aggregation

• Composition

• Inheritance

Match

Match the relationships with the correct symbol/arrow.

Inheritance (Generalization)

Aggregation

Composition

Association

• Inheritance (Generalization)

• Aggregation

• Composition

• Association

Multiple Choice

What kind of relationship is this?

Teacher – Student

A teacher teaches many students, and a student can be taught by many teachers.

• Association

• Aggregation

Multiple Choice

What kind of relationship is this?

Car – Vehicle

A car is a type of vehicle.

• Association

• Inheritance

Multiple Choice

What kind of relationship is this?

SavingsAccount – BankAccount

A savings account is a specific kind of bank account.

• Composition

• Inheritance

Multiple Choice

What kind of relationship is this?

Classroom – Student

A classroom has students, but students exist even if the classroom is removed.

• Inheritance

• Aggregation

Multiple Choice

What kind of relationship is this?

House – Room
A room cannot exist without a house.

• Composition

• Association

Multiple Choice

What kind of relationship is this?

Order – OrderItem

Order items exist only as part of an order.

• Composition

• Association

Multiple Choice

What kind of relationship is this?

Car – Engine

An engine belongs to exactly one car and does not exist on its own.

• Composition

• Aggregation

Multiple Choice

What kind of relationship is this?

Customer – Product

Customers buy products, and products can be bought by many customers.

• Composition

• Association

Multiple Choice

What kind of relationship is this?

Manager – Employee

A manager is an employee with extra responsibilities.

• Inheritance

• Aggregation

Multiple Choice

What kind of relationship is this?

Human – Heart

A heart cannot exist independently of a human.

• Composition

• Aggregation

Multiple Choice

What kind of relationship is this?

Department – Professor

A department has professors, but professors can move to another department.

• Composition

• Aggregation

Match

Match the following questions with the type of class diagram relationship

• “Is-a?”

• “Can it live alone?”

• “Will it die with the whole?”

• “Just related?”

Inheritance

Aggregation

Composition

Association

• Inheritance

• Aggregation

• Composition

• Association

Multiple Choice

Login is required before placing an order

• Include

• Extend

Multiple Choice

Apply discount only if user has a coupon

• Include

• Extend

Multiple Choice

Validate PIN when withdrawing money

• Include

• Extend

Multiple Choice

What does a use-case diagram mainly show?

• How classes are connected

• How the system is implemented

• How users interact with the system

• How data is stored

Multiple Choice

In a use-case diagram, who or what initiates a use case?

• The system

• The database

• The actor

• Another use case

Multiple Choice

Which symbol is used to represent an actor?

• Stick figure

• Circle

• Rectangle

• Diamond

Multiple Choice

What does a use case represent?

• A class in the system

• A user goal or action

• A database table

• A hardware device

Multiple Choice

Which relationship is used when a use case ALWAYS requires another use case?

• Association

• «extend»

• «include»

• Inheritance

Multiple Choice

What does a sequence diagram mainly show?

• The structure of classes

• The order of interactions between objects

• The database design

• The system architecture

Multiple Choice

In a sequence diagram, time flows in which direction?

• Left to right

• Right to left

• Top to bottom

• Bottom to top

Multiple Choice

What does a lifeline represent in a sequence diagram?

• A method

• An object or participant

• A loop

• A class attribute

Multiple Choice

Which element represents a message sent from one object to another?

• Rectangle

• Vertical dashed line

• Arrow with a label

• Diamond

Multiple Choice

What does an activation bar (focus of control) show?

• When an object is destroyed

• When an object is waiting

• When an object is executing an action

• When an object is created

Multiple Choice

What are some of the different types of modeling requirements you will learn about in this unit?

• UML diagrams, flowcharts, pseudocode

• Programming languages, databases, APIs

• Testing tools, deployment scripts, user manuals

• Web design, mobile apps, cloud computing