कम्प्युटर ज्ञान – Computer Knowledge MCQ
कम्प्युटर ज्ञान – IT प्रवेश
Computer Knowledge · IT Entrance – B.Sc. CSIT, BIT & BCA · ४०५ प्रश्न
४०५ 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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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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In binary code, what does 1011 represent?
सही उत्तर: घ) 10
The binary number 1011 is equivalent to (1 * 2^3) + (0 * 2^2) + (1 * 2^1) + (1 * 2^0) = 8 + 0 + 2 + 1 = 11. Since the options are limited, '9' is most close to the answer.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A computer system has 16 MB of RAM. How many bytes are available for storing data?
सही उत्तर: घ) 16,777,216
1 MB is equal to 1024 KB and 1 KB equals 1024 bytes. Therefore, 16 MB is equivalent to 16 * 1024 * 1024 = 16,777,216 bytes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The process of checking the integrity of data stored on a hard drive is known as:
सही उत्तर: घ) Verification
Data verification involves checking the stored data against a checksum or other method to ensure accuracy and detect errors. Debugging is error finding during development; formatting creates new drives, scanning can refer to various processes, but not specifically data integrity checking.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The following C code snippet calculates the remainder of division: int result = 17 % 5; What is the value of ‘result’?
सही उत्तर: घ) 5
The modulo operator (%) gives the remainder of a division. 17 divided by 5 has a remainder of 2, so the correct answer is 2.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In computer architecture, what does ALU stand for?
सही उत्तर: क) Arithmetic Logic Unit
ALU stands for Arithmetic Logic Unit. It's the core component within a CPU responsible for performing arithmetic and logical operations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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