कम्प्युटर / सूचना प्रविधि कम्प्युटर अपरेटर (पाँचौँ तह) र सहायक – प्राविधिक पत्र
कम्प्युटर / सूचना प्रविधि – कम्प्युटर अपरेटर (पाँचौँ तह) र सहायक
Computer Operator & Assistant · Computer & IT Posts
२,५७७ 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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On a CD, data is recorded as:
सही उत्तर: क) pits and lands read by a laser beam
The laser detects the change in reflection between pits and lands to read binary data.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a hard disk, the set of tracks at the same position on all platter surfaces is called a:
सही उत्तर: ग) cylinder
All tracks that lie under the read/write heads at one arm position together form a cylinder.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A hard disk has 8 recording surfaces, 1000 tracks per surface, 100 sectors per track and 512 bytes per sector. Its capacity is:
सही उत्तर: घ) 409.6 MB (409,600,000 bytes)
Capacity = 8 x 1000 x 100 x 512 = 409,600,000 bytes = 409.6 MB.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The smaller RAM module form factor commonly used in laptops is:
सही उत्तर: क) SO-DIMM
SO-DIMM (Small Outline DIMM) is about half the length of a desktop DIMM and is used in laptops and mini PCs.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a fully associative cache, a block of main memory:
सही उत्तर: ख) can be placed in any line of the cache
Full associativity allows any block to go into any cache line, needing comparison with all tags.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which level of cache is the smallest and fastest, located inside each CPU core?
सही उत्तर: क) L1 cache
L1 cache is closest to the core, smallest in size and fastest; L2 and L3 are larger and slower.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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DDR SDRAM achieves higher bandwidth than ordinary SDRAM mainly because it:
सही उत्तर: घ) transfers data twice per clock cycle, on the rising and the falling edge
Double Data Rate RAM transfers data twice per clock cycle, doubling the data rate at the same clock speed.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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EEPROM differs from EPROM in that EEPROM can be erased:
सही उत्तर: ग) electrically, without removing it from the circuit
EEPROM (Electrically Erasable PROM) is erased and rewritten electrically, while EPROM needs UV light.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A DRAM cell stores one bit as:
सही उत्तर: ख) electric charge on a small capacitor
A DRAM cell uses one transistor and one capacitor; the charge leaks, so it must be refreshed.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A math co-processor such as the Intel 8087 was designed mainly to speed up:
सही उत्तर: ख) floating-point arithmetic
The 8087 floating-point unit performed floating-point calculations much faster than the 8086 alone.
💬 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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