Information Technology (IT) MCQs - Computer Practice | PakExamPoint

Practise Information Technology (IT) MCQs in Computer. Attempt multiple-choice questions, check answers and revise related subtopics.

Information Technology (IT) MCQs and revision practice

Study Information Technology (IT) through multiple-choice questions in Computer. This subtopic contains 2241 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.

Use these Information Technology (IT) MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.

Continue your revision with related topics: 100 Most Repeated Computer MCQs MCQs, Computer Basic Hardware Components MCQs, Computer Short Questions MCQs, Computer Shortcut Keys MCQs, Important Abbreviations (Computer) MCQs, Internet and Social Media MCQs, Internet related Information MCQs, MS Access MCQs.

Return to all Computer topics to choose your next area of study. Read the MCQ study guide to plan your revision, or try a Computer practice quiz.

Information Technology (IT): questions and answer review

Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.

121. The laser printer uses ______ for printing.

لیزر پرنٹر پرنٹنگ کے لئے ______ استعمال کرتا ہے۔

Check answer and explanation

Answer: Laser

Explanation A laser printer uses a laser beam to produce an image on a drum. The image is then transferred to paper using toner powder .

122. Cryptography with one public and one private key?

کریپٹوگرافی جس میں ایک پبلک کی اور ایک پرائیوٹ کی استعمال ہوتی ہے، کیا کہلاتی ہے؟

Check answer and explanation

Answer: Asymmetric Key Cryptography

Explanation In Asymmetric Key Cryptography, two keys are used: Public Key – shared openly to encrypt data Private Key – kept secret to decrypt data This method ensures secure communication without sharing a secret key beforehand Last updated 15-feb-2026

123. In computer system word __is used for to start a computer.

Check answer and explanation

Answer: boot

Explanation

124. What is the main difference between a mainframe and a super computer?

مین فریم اور سپر کمپیوٹر کے درمیان بنیادی فرق کیا ہے؟

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Answer: Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently

Explanation The main difference between a mainframe and a super computer of Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently.

125. Information in discrete form is

Check answer and explanation

Answer: 0 and 1

Explanation

126. Which option in the following best explains Signals with reference to Linux Interprocess Communication (LPC)?

مندرجہ ذیل میں کون سا آپشن لینکس انٹرپروسیس مواصلات (ایل پی سی) کے حوالے سے سگنل کی وضاحت کرتا ہے؟

Check answer and explanation

Answer: Signals are asynchronous messages sent to a process

Explanation In Linux Interprocess Communication (IPC), signals are used to notify a process that a particular event has occurred. They are asynchronous , meaning they can arrive at any time, regardless of what the process is doing.

127. A system software that helps Operating system to communicate with a device is called:

ایک سسٹم سافٹ ویئر جو آپریٹنگ سسٹم کو کسی ڈیوائس کے ساتھ بات چیت کرنے میں مدد کرتا ہے کیا کہلاتا ہے

Check answer and explanation

Answer: Device driver

Explanation System software that helps OS to communicate with a device is called a Device driver. An operating system (OS) is a type of system software that controls how computer hardware and software resources are used and offer basic services to other software applications.

128. A graph with no cycles is called a _____?

بغیر کسی سائیکل والے گراف کو _____ کہا جاتا ہے؟

Check answer and explanation

Answer: Tree

Explanation A tree is a connected graph with no cycles . It has n nodes and (n-1) edges , ensuring a unique path between any two nodes .

129. ان میں سے کون سا ہائی لینگوج نہیں ہے؟

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Answer: Assembly Language

Explanation C++ is : programming language C++ created by: Bjarne Stroustrup (Computer Scientist from Denmark )

130. The components that process data are located in the ______?

ڈیٹا پر کارروائی کرنے والے اجزاء ______ میں واقع ہیں؟

Check answer and explanation

Answer: System Unit

Explanation The system unit houses the key components responsible for processing data, such as the CPU, memory, and motherboard. It is the core part of the computer where calculations and data processing occur.

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