कम्प्युटर ज्ञान – Computer Knowledge MCQ
कम्प्युटर ज्ञान – IT प्रवेश
Computer Knowledge · IT Entrance – B.Sc. CSIT, BIT & BCA · ३८२ प्रश्न
३८२ 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 describes the concept of 'bitwise' operations?
सही उत्तर: ख) B. Operations performed on individual bits within a data type.
Bitwise operations (AND, OR, XOR, NOT) manipulate individual bits of an integer value. This is distinct from general numerical calculations or algorithm design; option D describes a more complex programming approach.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In computer networking, what is a subnet mask used for?
सही उत्तर: ग) C. To divide a network into smaller logical networks.
A subnet mask is crucial in dividing an IP address into its network and host portions, allowing for efficient routing within a larger network. Options A, B, and D are related to different aspects of networking.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which data structure is best suited for implementing a Last-In, First-Out (LIFO) system?
सही उत्तर: ग) C. Stack.
Stacks operate on the principle of LIFO – the last element added is the first one removed. A queue operates on FIFO (First-In, First-Out). Option A is a queue data structure.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The 8-bit unsigned integer 1000 in binary is equal to which decimal value? (a) 64 (b) 256 (c) 128 (d) 255
सही उत्तर: घ) 255
Converting binary 1000 to decimal: (1 * 2^3) + (0 * 2^2) + (0 * 2^1) + (0 * 2^0) = 8. Option (a) is the correct answer, because it represents 8 as a hexadecimal number.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In computer architecture, what does ALU stand for? (a) Advanced Logic Unit (b) Arithmetic and Logic Unit (c) Automated Language Understanding (d) Analytical Learning Utility
सही उत्तर: ख) Arithmetic and Logic Unit
ALU stands for Arithmetic and Logic Unit. It is the part of a CPU that performs arithmetic operations (addition, subtraction, etc.) and logical operations (AND, OR, NOT, etc.). Options (a), (c) and (d) are incorrect.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The hexadecimal number 7B4 is equal to which decimal number? (a) 2864 (b) 3194 (c) 3046 (d) 514
सही उत्तर: ग) 3046
Hexadecimal uses base-16. Converting 7B4 from hexadecimal to decimal: (7 * 16^2) + (11 * 16^1) + (4 * 16^0) = (7 * 256) + (11 * 16) + 4 = 1792 + 176 + 4 = 1972. Option (a) is incorrect. Option (b) is the correct answer.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the output of the following C code? `int i = 5; for (i = 0; i < 5; i++); printf("%d", i);` (a) 5 (b) 0 (c) 1 (d) Error
सही उत्तर: क) 5
The loop increments `i` by 1 in each iteration. However, the increment step is omitted, so the condition `i < 5` will always be true after the initial value of `i = 5`. Therefore, `i` retains its value of 5 and is printed. Options (b), (c) and (d) are incorrect.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The decimal number 11001010 is equivalent to which binary number? (a) 101010 (b) 1010010 (c) 110100 (d) 1001010
सही उत्तर: ख) 1010010
Binary numbers are based on powers of 2. Converting 11001010 to binary reveals that it is equivalent to 1010010. Option (a) incorrectly represents the binary value. Options (c) and (d) have incorrect digits.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In computer programming, what does the term 'loop' primarily refer to?
सही उत्तर: ख) B. A sequence of instructions that is repeatedly executed until a specific condition is met.
A loop allows you to repeat a block of code multiple times based on a certain condition or number of iterations, automating repetitive tasks in programming.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The term ‘bandwidth’ in computer networking refers to:
सही उत्तर: ख) B. The maximum rate at which data can be transmitted over a connection.
Bandwidth is the capacity of a transmission medium – typically measured in bits per second (bps) – which determines how much data can be transferred within a given timeframe. It’s not about cable size or security measures.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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