Question 1
In object-oriented programming, which feature allows a subclass to provide a specific implementation of a method already defined in its superclass?
Correct Answer:
Method overriding
Question 2
Which OOP principle is most directly violated when a class exposes its instance variables as public and allows external code to modify them freely?
Correct Answer:
Encapsulation
Question 3
A class Shape has a method area(). Classes Circle and Rectangle both inherit from Shape and define their own area() methods. Calling shape.area() executes the correct version at run-time based on the actual object type. This is an example of which concept?
Correct Answer:
Dynamic (run-time) polymorphism
Question 4
What is the relationship described when a class Car has-a Engine object as one of its fields?
Correct Answer:
Composition (aggregation)
Question 5
An abstract class in Java contains at least one abstract method. Which statement about abstract classes is correct?
Correct Answer:
Abstract classes can be subclassed, and concrete subclasses must implement all abstract methods
Question 1
Exam overview

About this Exam

Prepare with the A-Level Computer Science Practice Questions - A-Level Computer Science Exam practice quiz. This question bank includes 100 questions covering search, complexity, binary, class, and memory. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

A-Level Computer Science Practice Questions - A-Level Computer Science Exam

This practice set contains 100 questions from the matching question bank and focuses on search, complexity, binary, class, and memory. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.
No fixed duration is currently configured for this quiz.
Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.
Yes. You can retake the practice test again as you continue studying during your available access period.
After your access is confirmed, you can continue into the complete practice exam from this quiz flow.
Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.
Keep studying

Related Questions