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Computer Science Fundamentals MCQs

Practice Computer Science Fundamentals multiple-choice questions for Air University competitive exams. Each question includes the correct answer and a short explanation, and past-paper questions are marked so you can revise both repeated and fresh material in one place.

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RAM

Cache

ROM

Registers

الشرحROM (Read-Only Memory) retains its data even when power is turned off, making it non-volatile.

Encapsulation

Polymorphism

Abstraction

Inheritance

الشرحInheritance is the mechanism where a new class derives properties and behaviors from an existing base class.

Data Link

Network

Transport

Session

الشرحThe Network layer (Layer 3) handles logical addressing and routing packets between networks.

Queue

Linked List

Stack

Binary Tree

الشرحA stack is a LIFO structure where the last item added is the first one to be removed.

Standard Query Language

Structured Query Language

Simple Query Logic

System Question Language

الشرحSQL is the standard language for managing and manipulating relational databases.

Assembly

Machine Code

Python

Binary

الشرحPython is an interpreted, high-level language, unlike assembly or binary code.

User interface management

Memory and process management

Web browsing

File compression

الشرحThe kernel is the core of the OS, managing low-level hardware resources like CPU and memory.

الشرح1*2^3 + 0*2^2 + 1*2^1 + 1*2^0 = 8 + 0 + 2 + 1 = 11.

Apache

MySQL

Google Chrome

Eclipse

الشرحMySQL is a popular open-source relational database management system.

To debug code

To convert high-level code to machine code

To execute code line-by-line

To store data permanently

الشرحA compiler translates human-readable source code into machine-executable code.

HTTP

FTP

HTTPS

SMTP

الشرحHTTPS adds a layer of encryption (SSL/TLS) to standard HTTP communication.

Central Processing Unit

Computer Peripheral Unit

Central Program Utility

Control Processing Unit

الشرحThe CPU is the primary component of a computer that performs most of the processing inside the computer.

Frequently Asked Questions

Are these Computer Science Fundamentals MCQs free?

Yes. Every Computer Science Fundamentals MCQ on this page is free to practice, including the correct answer and explanation.

Do these include past-paper questions?

Yes — questions sourced from past papers are clearly marked with a "Past Paper" badge, alongside fresh practice questions.

Which exams do these Computer Science Fundamentals MCQs help with?

They are aimed at Air University and related Pakistani competitive exams that test Computer Science Fundamentals.

How should I practice subject-wise MCQs?

Attempt each question first, then reveal the answer and read the explanation. Short, focused sessions on one subject work better than long unstructured reading.