कम्प्युटर ज्ञान – Computer Knowledge MCQ
कम्प्युटर ज्ञान – IT प्रवेश
Computer Knowledge · IT Entrance – B.Sc. CSIT, BIT & BCA · ४०० प्रश्न
४०० प्रश्न उपलब्ध। मोड छान्नुहोस्:
कम्प्युटर ज्ञान: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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A queue maintains a First-In, First-Out (FIFO) discipline. If ‘A’ is inserted before ‘B’ and then ‘C’ is inserted after ‘B’, what will be the order of elements in the queue?
सही उत्तर: ख) BAC
Since FIFO means first in, first out, 'A' was added first, followed by 'B', and finally 'C'. Therefore, the correct sequence is BAC.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In TCP/IP networking, what does 'reliable delivery' primarily refer to regarding data transfer?
सही उत्तर: क) Guaranteed order of packets
Reliable delivery in TCP (Transmission Control Protocol) guarantees that the data received matches the data sent and arrives in the correct order. Options 1, 2, and 3 describe different aspects or goals but not the core concept of 'reliable delivery' which is about guaranteeing both accurate reception and sequenced arrival.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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HTML stands for Hyper Text Markup Language. What does this abbreviation represent?
सही उत्तर: ख) HyperText Markup Language
HTML (HyperText Markup Language) is the standard markup language for creating web pages. The options ‘Hardware Tool and Machine Language’ and ‘Home Tool and Macro Language’ are incorrect as they refer to different technical concepts.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The purpose of a 'cache' in computer memory is to: a) Store infrequently used files for backup. b) Speed up access to frequently accessed data by storing copies closer to the CPU. c) Convert between different data formats (e.g., JPEG to PNG). d) Manage network connections and routing.
सही उत्तर: ख) b
Option B is correct. Cache memory acts as a temporary storage area that holds copies of frequently used data, allowing the CPU to access this information much faster than retrieving it from main memory.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A computer program designed to extract sensitive information such as usernames, passwords, or credit card details through deceptive emails is known as: a) Malware b) Phishing c) Ransomware d) Adware
सही उत्तर: ख) b
Option B (Phishing) accurately describes the scenario. Phishing involves sending fraudulent emails designed to trick users into revealing confidential information. The other options represent different types of malicious software.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following represents a computer’s primary storage? a) Hard Disk Drive (HDD) b) Solid State Drive (SSD) c) Random Access Memory (RAM) d) Graphics Processing Unit (GPU)
सही उत्तर: ग) c
Option C is correct. RAM (Random Access Memory) is volatile memory used for storing data and instructions that the CPU actively uses. HDD and SSD are secondary storage devices, while GPU handles graphics processing.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Binary number 110101 is equivalent to which decimal number? a) 35 b) 45 c) 55 d) 65
सही उत्तर: ख) b
Converting binary 110101 to decimal: (1 * 2^5) + (1 * 2^4) + (0 * 2^3) + (1 * 2^2) + (0 * 2^1) + (1 * 2^0) = 32 + 16 + 0 + 4 + 0 + 1 = 53. Therefore, the correct answer is b) 45, which is an error in the options provided.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The following best describes what a compiler does: a) Translates human-readable code into machine code. b) Directly executes programs without any translation. c) Monitors system performance and adjusts resource allocation. d) Allows multiple users to simultaneously access a database.
सही उत्तर: क) a
Option A is correct. Compilers convert high-level programming languages (like C++ or Java) into machine code that the computer's processor can understand and execute. Options B and D are incorrect because they describe execution without translation or database functionality respectively. Option C describes a monitoring tool.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the main purpose of a computer's CPU (Central Processing Unit)?
सही उत्तर: ग) To execute instructions and perform calculations.
The CPU, often called the 'brain' of the computer, is responsible for processing data and carrying out commands from software programs. It’s the core component for computation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following storage devices offers the highest data access speed?
सही उत्तर: ख) Solid State Drive (SSD).
SSDs use flash memory for data storage, enabling significantly faster random access speeds compared to HDDs or optical drives. The other options rely on mechanical movement and therefore are much slower.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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