कम्प्युटर / सूचना प्रविधि कम्प्युटर अधिकृत (सातौँ तह) – प्राविधिक पत्र
कम्प्युटर / सूचना प्रविधि – कम्प्युटर अधिकृत (सातौँ तह)
Computer Officer – 7th Level · Computer & IT Posts
१,५०२ प्रश्न उपलब्ध। मोड छान्नुहोस्:
प्राविधिक पत्र: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ५ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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Which of these signed-number representations has two different bit patterns for zero (+0 and -0)?
सही उत्तर: ग) 1's complement
In 1's complement, 0000 0000 is +0 and 1111 1111 is -0; 2's complement has a single zero.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the most negative value that a 16-bit two's complement integer can hold?
सही उत्तर: क) -32768
An n-bit two's complement number ranges from -2^(n-1) to 2^(n-1) - 1; for n = 16 the minimum is -2^15 = -32768.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Why can the decimal fraction 0.1 be stored only approximately in binary floating point?
सही उत्तर: ख) Its binary expansion repeats endlessly
0.1 in binary is 0.000110011001100... (recurring), so any finite mantissa must round it.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The 8421 BCD code 0010 0101 0011 represents the decimal number:
सही उत्तर: घ) 253
Each 4-bit group is one decimal digit: 0010 = 2, 0101 = 5, 0011 = 3, giving 253.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The hexadecimal number 2F expressed in octal is:
सही उत्तर: घ) 57
2F (hex) = 0010 1111 = 101 111 grouped in threes = 57 (octal); in decimal both equal 47.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The number 121 written in some base b is equal to decimal 49. What is b?
सही उत्तर: ख) 6
b^2 + 2b + 1 = (b + 1)^2 = 49, so b + 1 = 7 and b = 6.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In which number base is the addition 24 + 13 = 40 correct?
सही उत्तर: ग) 7
In base b: (2b + 4) + (b + 3) = 4b, so 3b + 7 = 4b and b = 7. Check: 18 + 10 = 28 = 4 x 7.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Babbage planned a section of his Analytical Engine called the 'store', which held numbers waiting to be processed. Its modern equivalent is the:
सही उत्तर: क) Memory
The store held numbers and intermediate results, just as main memory does in a modern computer; the mill did the arithmetic.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A computer whose CPU is a single microprocessor chip, such as a desktop PC or laptop, is classified as a:
सही उत्तर: ख) Microcomputer
Microcomputers are built around a microprocessor and are designed mainly for individual users.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The ability of a computer to perform very different kinds of jobs, such as accounting, drawing and communication, is called its:
सही उत्तर: घ) Versatility
Versatility means a computer can be used for many different types of tasks simply by running different programs.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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AI ले गल्ती गर्न सक्छ। महत्वपूर्ण कुरा आधिकारिक स्रोतमा जाँच्नुहोस्।