Ruby Programming Quiz

What is encapsulation in Ruby?

• C. Sharing code between classes

• B. Inheriting properties from another class

• D. Adding functionality to objects

• A. Grouping data and methods into a single unit

What is the purpose of modules in Ruby?

• A. Creating instances of classes

• C. Defining class hierarchies

• B. Preventing naming conflicts

• D. Handling exceptions

How is inheritance different from mixins in Ruby?

• A. Inheritance allows sharing behavior between classes

• B. Mixins create a hierarchy of classes

• C. Inheritance is used for code reuse

• D. Mixins share behavior between unrelated classes

What is polymorphism in Ruby?

• D. Creating instances of a class

• C. Defining attributes and behaviors of a class

• B. Processing objects differently based on data types

• A. Hiding the internal state of an object

How is encapsulation achieved in Ruby?

• B. Through method overriding

• D. Adding module methods at the class level

• C. By bundling data and methods into a class

• A. Using the < symbol

What is the syntax for handling exceptions in Ruby?

• C. begin-rescue block

• B. if-else statement

• A. try-catch block

• D. switch-case statement

What is a class in Ruby?

• B. A way to share code between classes

• A. A blueprint for creating objects

• C. A mechanism for handling exceptions

• D. A container for methods

What does the extend keyword do in Ruby?

• A. Mix module methods into a class

• D. Inherit properties from another class

• C. Create instances of a class

• B. Add module methods at the class level

What is the purpose of mixins in Ruby?

• B. Share behavior between unrelated classes

• A. Prevent naming conflicts

• C. Create instances of classes

• D. Define class hierarchies

What is the mechanism of inheritance in Ruby?

• A. Using the < symbol

• D. Adding module methods at the class level

• B. Sharing behavior between classes

• C. Creating a hierarchy of classes