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.

2131. Cathode Ray gets signal-power from ______

کیتھوڈ رےکس سے سگنل یا پاور حاصل کرتا ہے

Check answer and explanation

Answer: Electronic Chip

Explanation Cathode rays are produced when there is a potential difference (voltage) applied across the electrodes .

2132. Which one is not an Image file ?

کون سی ایک تصویری فائل نہیں ہے؟

Check answer and explanation

Answer: .wmv

Explanation WMV is a video format which is compressed with Windows Media compression and contains a video encoded with one of Microsoft's Windows Media Video.

2133. AND, OR, XOR, NOT, NAND, NOR are which type of gate?

Check answer and explanation

Answer: Logic gate

Explanation Logic gates are the fundamental building blocks of digital systems. The AND, OR, and NOT gates are the most fundamental logic gates. The NAND and NOR gates are called universal gates because they can be combined to produce OR, AND, and NOT gates.

2134. What is the purpose of the “BCC” field in an email?

ای میل میں "بی سی سی" فیلڈ کا مقصد کیا ہے؟

Check answer and explanation

Answer: To send a copy of the email to multiple recipients without revealing their email addresses to others.

Explanation BCC ( Blind Carbon Copy ) hides the recipient list from others. It helps maintain privacy when emailing multiple people at once .

2135. In the memory hierarchy the fastest memory is?

Check answer and explanation

Answer: Registers

Explanation The registers are fast storage elements present in a very small amount in the computer processor. Registers are the fastest type of memory , which are located internal to a processor. A computer's recently used info/data gets stored in the cache. Cache memory is also called CPU memory. Cache is the fastest and smallest component of memory in a computer system.

2136. Conversion of the hexadecimal number 1D7F₁₆ to a decimal number is _____?

Check answer and explanation

Answer: 7551₁₀

Explanation To convert the hexadecimal number 1D7F₁₆ to a decimal number, we can break it down as follows: 1 in hexadecimal = 1 × (16^3) = 1 × 4096 = 4096 D in hexadecimal = 13 × (16^2) = 13 × 256 = 3328 7 in hexadecimal = 7 × (16^1) = 7 × 16 = 112 F in hexadecimal = 15 × (16^0) = 15 × 1 = 15 Now, sum these values: 4096 + 3328 + 112 + 15 = 7551 So, the decimal equivalent of 1D7F₁₆ is 7551.

2137. Input-Output processor has direct access to ?

ان پٹ آؤٹ پٹ پروسیسر کو براہ راست کہاں رسائی حاصل ہے؟

Check answer and explanation

Answer: Main Memory

Explanation Input/Output has Direct Access to main memory.

2138. What is the term for the process of converting data into a code to prevent unauthorized access?

غیر مجاز رسائی کو روکنے کے لیے ڈیٹا کو کوڈ میں تبدیل کرنے کے عمل کی اصطلاح کیا ہے؟

Check answer and explanation

Answer: Encryption

Explanation Encryption is the process of converting plaintext data into a coded, unreadable form to protect it from unauthorized access. The primary purpose of encryption is to ensure the confidentiality and security of sensitive information.

2139. Rounding errors can occur

Check answer and explanation

Answer: When you use multiplication, division, or exponentiation in a formula

Explanation When we use multiplication, division, or exponentiation in a formula, rounding errors can occur. **** RY17-012-23

2140. The General Motors Research Laboratories implemented the first operating systems in early ___________ for their IBM 701 computer.

Check answer and explanation

Answer: 1950s

Explanation The first operating system was introduced in the early 1950 's, it was called GMOS and was created by General Motors for IBM's machine the 701.

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