कम्प्युटर / सूचना प्रविधि कम्प्युटर अधिकृत (सातौँ तह) – प्राविधिक पत्र
कम्प्युटर / सूचना प्रविधि – कम्प्युटर अधिकृत (सातौँ तह)
Computer Officer – 7th Level · 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 modern motherboards and laptops, M.2 refers to:
सही उत्तर: घ) A small expansion-card form factor commonly used for SSDs
M.2 is a compact slot and card format; M.2 SSDs can use either SATA or PCIe/NVMe signalling.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A parallel ATA (IDE) hard disk connects to the motherboard through a ribbon-cable connector with how many pins?
सही उत्तर: घ) 40
PATA/IDE uses a 40-pin connector (with 40- or 80-wire cable); SATA data uses 7 contacts.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Marking the surface of a blank disk into tracks and sectors is called:
सही उत्तर: ख) Low-level (physical) formatting
Low-level formatting creates the physical track and sector layout; high-level formatting then writes a file system.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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MTBF, a figure often used to express hard disk reliability, stands for:
सही उत्तर: ग) Mean Time Between Failures
MTBF is the average operating time expected between failures of a device, usually quoted in hours.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which type of NAND flash cell stores only one bit per cell and offers the highest endurance?
सही उत्तर: क) SLC
Single-Level Cell flash stores 1 bit per cell; MLC, TLC and QLC store 2, 3 and 4 bits, trading endurance for density.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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NOR flash, unlike NAND flash, is often used to hold firmware because it:
सही उत्तर: ख) Allows fast random byte reads, so code can execute directly from it
NOR flash is byte-addressable for reading, which supports execute-in-place; NAND is denser and is used for bulk storage.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Memory that is searched by its contents rather than by an address is called:
सही उत्तर: घ) Associative (content-addressable) memory
Content-addressable memory compares the search key with all stored words at once and reports matches.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a direct-mapped cache, a miss that happens because two frequently used blocks map to the same line and keep evicting each other is a:
सही उत्तर: क) Conflict miss
Conflict misses come from the restricted placement of a mapping scheme; more associativity reduces them.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A direct-mapped cache has 128 lines of 16 bytes each, and the machine uses 32-bit byte addresses. How many bits form the tag?
सही उत्तर: ग) 21
Offset = log2(16) = 4 bits, index = log2(128) = 7 bits, so tag = 32 - 7 - 4 = 21 bits.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The 32-bit value 12345678H is stored starting at address 100 on a big-endian machine. Which byte is at address 100?
सही उत्तर: ग) 12H
Big-endian stores the most significant byte at the lowest address, so address 100 holds 12H.
💬 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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