OOP Concept: Polymorphism

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Questions and Answers

what does the term "polymorphism' refer to in the context of object-orieted
programming?

  • Ability of a function to prefer different actions based on the object it is actiing upon (correct)
  • A programming language feature
  • a design pattern for sofware development
  • a method of data encryption

Project manager produces a use case diagram

False (B)

Intial state is

the intial state refer to the stating conditions or configuration of a system at the beginning of a process or sequence

what is the actor?

<p>a person who portrays a character in a performance (D)</p> Signup and view all the answers

What is the term used to describe the relationship between a superclass and its subclass in object-oriented programming?

<p>inheritance (A)</p> Signup and view all the answers

Which of the following describe secondary actor?

<p>interacts with the system but is not the primary user or main actor (B)</p> Signup and view all the answers

How should a data store be visually represented in a DFD?

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This diagram below are UML behavi0oral diagram except

<p>Class Diagram (D)</p> Signup and view all the answers

What does the term 'Encapsulation' refer to in object-oriented progaramming?

<p>Combining data and methods that operate on the data into a single unit (A)</p> Signup and view all the answers

Generalization association is a transitive association, meaning the relationship between instances of one class can be extended to instances of another class through a chain of associations involving intermediate classes.

<p>True (A)</p> Signup and view all the answers

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Study Notes

Object-Oriented Programming Concepts

  • Polymorphism refers to the ability of an object to take on multiple forms, depending on the context in which it is used.

UML Diagrams

  • A Project Manager typically produces a Use Case Diagram.

States and Actors

  • Initial State is a specific state in a system.
  • An Actor is an entity that interacts with a system, but is not part of the system itself.

Inheritance and Relationships

  • The term used to describe the relationship between a Superclass and its Subclass is Inheritance.

Actors and Roles

  • A Secondary Actor is an entity that is not a primary user of the system, but still interacts with it.

Data Flow Diagrams

  • A Data Store should be visually represented as a rectangle with an open top in a DFD.

UML Behavioral Diagrams

  • The diagram options (not provided) that are not UML behavioral diagrams are EXCEPT for...

Encapsulation

  • Encapsulation refers to the concept of bundling data and its associated methods that operate on that data within a single unit, making it harder for other parts of the program to access or modify the data directly.

Generalization Association

  • Generalization Association is a transitive association, meaning the relationship between instances of one class can be extended to instances of another class through a chain of associations involving intermediate classes.

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