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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
ExplanationROM (Read-Only Memory) retains its data even when power is turned off, making it non-volatile.
Encapsulation
Polymorphism
Abstraction
Inheritance
ExplanationInheritance is the mechanism where a new class derives properties and behaviors from an existing base class.
Data Link
Network
Transport
Session
ExplanationThe Network layer (Layer 3) handles logical addressing and routing packets between networks.
Queue
Linked List
Stack
Binary Tree
ExplanationA 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
ExplanationSQL is the standard language for managing and manipulating relational databases.
Assembly
Machine Code
Python
Binary
ExplanationPython is an interpreted, high-level language, unlike assembly or binary code.
User interface management
Memory and process management
Web browsing
File compression
ExplanationThe kernel is the core of the OS, managing low-level hardware resources like CPU and memory.
9
10
11
13
Explanation1*2^3 + 0*2^2 + 1*2^1 + 1*2^0 = 8 + 0 + 2 + 1 = 11.
Apache
MySQL
Google Chrome
Eclipse
ExplanationMySQL 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
ExplanationA compiler translates human-readable source code into machine-executable code.
HTTP
FTP
HTTPS
SMTP
ExplanationHTTPS adds a layer of encryption (SSL/TLS) to standard HTTP communication.
Central Processing Unit
Computer Peripheral Unit
Central Program Utility
Control Processing Unit
ExplanationThe 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.

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