कम्प्युटर आधारभूत ज्ञान र हार्डवेयर – Computer Fundamentals & Hardware MCQ
कम्प्युटर आधारभूत ज्ञान र हार्डवेयर – कम्प्युटर र IT
Computer Fundamentals & Hardware · Computer & IT (Technical) · ५७४ प्रश्न
५७४ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कम्प्युटर आधारभूत ज्ञान र हार्डवेयर: 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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Under the MBR (Master Boot Record) partitioning scheme, a disk can have at most how many primary partitions?
सही उत्तर: क) 4
The MBR partition table has four entries; more partitions need an extended partition with logical drives.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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RAID 5 can survive the failure of one disk because it:
सही उत्तर: ख) stores parity information distributed across all disks
Lost data on a failed disk is rebuilt from the remaining data and parity blocks.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the minimum number of disks required for a RAID 5 array?
सही उत्तर: क) 3
RAID 5 stripes data with distributed parity, which needs at least three disks.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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CD-RW discs can be erased and rewritten because their recording layer is made of:
सही उत्तर: घ) a phase-change alloy
A laser switches the phase-change alloy between crystalline and amorphous states, which reflect light differently.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A single-sided, dual-layer DVD can store about:
सही उत्तर: ग) 8.5 GB
A single-layer DVD holds 4.7 GB; adding a second layer on the same side raises this to about 8.5 GB.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The storage capacity of a standard 3.5-inch high-density floppy disk is:
सही उत्तर: ख) 1.44 MB
The common 3.5-inch HD floppy stores 1.44 MB.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A cache miss that occurs the very first time a memory block is ever accessed is called a:
सही उत्तर: ख) compulsory (cold) miss
A compulsory miss cannot be avoided by a bigger cache because the block has never been loaded before.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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How many 1K x 4 memory chips are needed to build a 4K x 8 memory?
सही उत्तर: क) 8
Total bits needed / bits per chip = (4K x 8) / (1K x 4) = 8 chips (4 rows of 2 chips).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A memory chip has 12 address lines and 16 data lines. Its capacity is:
सही उत्तर: घ) 8 KB
2^12 = 4096 locations x 16 bits = 65536 bits = 8192 bytes = 8 KB.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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ECC (Error-Correcting Code) memory, often used in servers, can:
सही उत्तर: क) detect and correct single-bit memory errors
ECC memory stores extra check bits, typically allowing single-bit errors to be corrected and double-bit errors detected.
💬 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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