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.

1521. What is the source of exchange of information?

معلومات کے تبادلے کا ذریعہ کیا ہے؟

Check answer and explanation

Answer: Internet

Explanation Internet is a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.

1522. Which of the following is a conventional designation of pre-released software?

مندرجہ ذیل میں سے کون سا پہلے سے جاری کردہ سافٹ ویئر کا روایتی عہدہ ہے؟

Check answer and explanation

Answer: Beta

Explanation Both Alpha and Beta are conventional designations for pre-released software in the software release life cycle. Alpha is for internal, early-stage testing (focusing on core functionality & big bugs), Beta is for external, wider user testing (focusing on real-world use & polish)

1523. Hard Disk is an example of:

ہارڈ ڈسک کس کی ایک مثال ہے

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Answer: Magnetic Storage

Explanation Hard Disk is an example of Magnetic Storage and Secondary storage . The hard disk was invented on September 13, 1956, by an IBM team led by Rey Johnson The c ommercial usage of hard disk drives (HDD) began in 1957 Rey Johnson (considered as “ father” of the disk drive ). A computer hard disk drive i s a non-volatile data storage device. Hard Disk is an example of Magnetic Storage ND07-3-2023

1524. What is the time complexity of a loop inside a loop, each running n times?

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Answer: O(n²)

Explanation A loop inside another loop is called a nested loop . If both loops run n times , the inner loop runs n times for each iteration of the outer loop . Total iterations = n × n = n² . Therefore, the time complexity is O(n²) .

1525. A data rate is expressed in bps (bits per second). Which of the following is not a valid way of expressing bps? Mbps, Gbps, Hbps, Tbps

بی پی ایس (بٹس فی سیکنڈ) میں ڈیٹا کی شرح کا اظہار کیا جاتا ہے۔ مندرجہ ذیل میں سے کون سا بٹس فی سیکنڈ کے اظہار کا ایک درست طریقہ نہیں ہے؟

Check answer and explanation

Answer: Hbps

Explanation Mbps = Megabits per second Gbps = Gigabits per second Tbps = Terabits per second Hbps is not a standard data transfer speed unit.

1526. How does Floyd–Warshall handle negative edge weights?

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Answer: Finds shortest paths even with negative edges

Explanation The Floyd–Warshall algorithm computes shortest paths between all pairs of vertices . It supports negative edge weights , as long as there are no negative cycles . Negative cycles make the shortest path undefined , which Floyd–Warshall can detect.

1527. The __________ of an image shows whether the image is oriented the same way as the object (upright) or upside down (inverted) with respect to the object?

Check answer and explanation

Answer: Position

Explanation An object is located a distance xo in front of a lens.

1528. What is an entity?

ایک ہستی کیا ہے؟

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Answer: A single object or concept

Explanation An entity refers to a single object, person, or concept that can be distinctly identified. It often used in databases . Examples include a customer, product, or employee in an organizational context.

1529. which system call creates a new process in Unix?

یونکس میں کون سا سسٹم کال نیا پروسیس بناتا ہے؟

Check answer and explanation

Answer: fork()

Explanation The fork (system call) system call is used in Unix to create a new process . It creates a child process that is an exact copy of the parent process. After fork(), both parent and child processes run independently. Last updated 15-feb-2026

1530. In a JK flipflop, what happens if both J and K inputs are held high while the clock pulse is applied?

Check answer and explanation

Answer: The output toggles

Explanation In a JK flip-flop , when both J and K inputs are high, the output switches (toggles) between 0 and 1 with each clock pulse. This property makes JK flip-flops ideal for toggle operations in counters.

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