2nd Year Computer Chapter 3 TestOBJECT ORIENTED PROGRAMMING USING PYTHON

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. OOP allows code to be divided into modules, which promotes:

   1. Modularity

   2. Redundancy

   3. Fragmentation

   4. Linear execution

2. An object is defined as a(n):

   1. Abstract definition with no memory allocation

   2. Instance of a class that holds actual values for its attributes

   3. Standalone function without data

   4. External library module

3. The main idea behind encapsulation in OOP is:

   1. To hide data inside a class and prevent unauthorised access.

   2. To create a flexible and adaptable programme.

   3. To reuse code from other classes.

   4. To allow multiple inheritance in classes.

4. Unlike languages like Java or C++, Python controls data access primarily using:

   1. Naming conventions

   2. Hardware security modules

   3. File permissions

   4. Strict compiler enforcement

5. The OOP concept that hides data inside a class is:

   1. Inheritance

   2. Polymorphism

   3. Encapsulation

   4. Abstraction

6. What mechanism does Python use to alter the internal name of a double-underscore variable to prevent accidental outside access?

   1. Data Hiding

   2. Type Casting

   3. Garbage Collection

   4. Name Mangling

7. Inheritance allows a class to:

   1. Hide its data only.

   2. Inherit attributes and methods from another class.

   3. Define multiple functions only.

   4. Create objects without a class.

8. Multilevel inheritance occurs when a class inherits from:

   1. Another derived class

   2. Multiple unrelated parent classes simultaneously

   3. Only built-in system modules

   4. A single base class with no other connections

9. Polymorphism in OOP is best defined as:

   1. Allowing an object to take multiple forms through method overriding.

   2. Hiding data inside a class for security.

   3. Using multiple inheritance to extend classes.

   4. Ensuring that each object has only one method.

10. When a child class provides a specific implementation of a method that is already defined in its parent class, it is called:

    1. Method Overriding

    2. Method Overloading

    3. Method Encapsulation

    4. Method Instantiation