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.

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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.

241. A DFA (deterministic finite automata) is defined by a quintuple (5-tuple) as (Q, Σ, δ, q0, F). Where δ = ______?

Check answer and explanation

Answer: A transition function that maps Q × Σ --> Q

Explanation In a Deterministic Finite Automaton (DFA), δ (delta) represents the transition function. It defines how the automaton moves from one state to another. Additional information : Q → Finite set of states Σ → Finite set of input symbols δ → Transition function (Q × Σ → Q) q₀ → Initial (start) state F → Set of final (accepting) states Last verified on 24-03-2026

242. What does the term HTTPS means?

ایڇ۔ٹی۔ٹی۔پی۔ایس کی اصطلاح کا کیا مطلب ہے؟

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Answer: Hyper Text Transfer Protocol Secure

Explanation HTTPS ( Hypertext Transfer Protocol Secure ) is an extension of the Hypertext Transfer Protocol (HTTP) used for secure communication over the internet. It combines HTTP with an additional security layer, typically Secure Sockets Layer (SSL) or Transport Layer Security (TLS), to encrypt and protect the data being transmitted between a website and a user's browser.

243. Who developed Computer Operating System "Window"?

کمپیوٹر آپریٹنگ سسٹم "ونڈو" کس نے تیار کیا؟

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Answer: Bill Gates

Explanation The computer operating system " Windows " was developed by Bill Gates , co-founder of Microsoft . It became one of the most widely used operating systems in the world.

244. If a computer beeps while turning on, or doesn't turn on, what is likely to happen?

اگر کمپیوٹر آن کرتے وقت بیپ کرتا ہے، یا آن نہیں ہوتا ہے، تو کیا ہونے کا امکان ہے؟

Check answer and explanation

Answer: It will display a BIOS or UEFI error message

Explanation Beeps or failure to boot can indicate a hardware or firmware issue, which is typically reported by the BIOS (Basic Input/Output System) or UEFI (Unified Extensible Firmware Interface) firmware during the boot process.

245. Which one of the following is the most powerful computer?

مندرجہ ذیل میں سے کون سا کمپیوٹر سب سے طاقتور ہے؟

Check answer and explanation

Answer: Super Computer

Explanation Supercomputers were introduced in the 1960s as the world's most advanced computer. A supercomputer is a powerful computer that can process a large amount of data and computation very quickly. Supercomputers perform immense amounts of mathematical calculations. Super Computers are also known as Number Crunching . Supercomputers are used for areas related to: Science Engineering Education Defense Aerospace

246. ان میں سے کون سا کمپیوٹر سسٹم کا حصہ ہے؟

Check answer and explanation

Answer: یہ تمام اجزاء

Explanation کمپیوٹر ایک برقیاتی آلہ جو حساب کے سوال اور پیچیدہ شماریاتی مسئلے، مقررہ اور پروگرامی ہدایات کے مطابق ،آسانی سے حل کر لیتا ہے .

247. Which type of loop is commonly used to iterate through an array in C?

کس قسم کا لوپ عام طور پر سی میں ایک صف کے ذریعے تکرار کرنے کے لیے استعمال ہوتا ہے؟

Check answer and explanation

Answer: For loop

Explanation In C, the For loop is commonly used to iterate through an array because it allows for easy initialization, condition checking , and incrementing/decrementing of the loop counter. The syntax of a For loop is designed to handle array indexing and iteration naturally.

248. Which app is used for applying for a domicile certificate in Pakistan?

پاکستان میں ڈومیسائل سرٹیفکیٹ کے لئے درخواست دینے کے لئے کون سی ایپ استعمال کی جاتی ہے؟

Check answer and explanation

Answer: Pak Identity

Explanation The Pak Identity app , developed by NADRA (National Database and Registration Authority), is used for applying for a domicile certificate in Pakistan. It allows citizens to apply for various services, including domicile certificates, digitally.

249. How is dynamically allocated memory de allocated in C++?

Check answer and explanation

Answer: Using delete

Explanation In C++ , dynamically allocated memory with new is deallocated using delete . delete[] is used to free memory allocated for arrays.

250. Which data structure is best for implementing a priority queue?

ترجیحی قطار کو نافذ کرنے کے لئے کون سا ڈیٹا ڈھانچہ بہترین ہے؟

Check answer and explanation

Answer: Heap

Explanation A heap efficiently supports priority queue operations like insertion and extraction of the highest (or lowest) priority element . Common types include min-heap and max-heap , which maintain the heap property for fast access to priority elements.

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