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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Booth's algorithm is used in computer arithmetic for:
सही उत्तर: ग) Multiplying signed numbers in 2's complement form
Booth's algorithm multiplies two's complement numbers directly by recoding runs of 1s in the multiplier.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An FPGA implements the user's logic mainly by means of configurable:
सही उत्तर: ग) Look-up tables (LUTs) joined by programmable interconnect
FPGA logic blocks are built from small LUTs and flip-flops, wired together by programmable routing that can be reconfigured.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which programmable logic device lets the user program both its AND array and its OR array?
सही उत्तर: क) PLA
A PLA has both arrays programmable; a PAL has programmable AND with fixed OR; a PROM has a fixed AND (decoder) with programmable OR.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In digital electronics, noise margin refers to:
सही उत्तर: ख) The amount of noise voltage that can be added to a logic level without it being read wrongly
Noise margin is the difference between the guaranteed output level of a driving gate and the input threshold of the receiving gate.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which logic family is the fastest of the classic families because its transistors are kept out of saturation?
सही उत्तर: घ) ECL (emitter-coupled logic)
ECL uses non-saturating differential transistor switches, avoiding storage delay; this makes it very fast but power-hungry.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which multivibrator has no stable state and is used to generate a continuous square wave, for example as a clock?
सही उत्तर: घ) Astable
An astable multivibrator keeps switching between its two quasi-stable states on its own, giving a free-running square wave.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A Schmitt trigger is used in digital circuits mainly to:
सही उत्तर: ख) Turn slow or noisy input signals into clean digital levels using hysteresis
A Schmitt trigger has two different switching thresholds (hysteresis), so noise around one threshold does not cause repeated switching.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Applying J = 0, K = 1 to a JK flip-flop and then a clock pulse makes its output Q:
सही उत्तर: ग) Become 0
J = 0, K = 1 is the reset condition of a JK flip-flop, so Q becomes 0 at the clock edge.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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After the active clock edge, the data input of a flip-flop must stay unchanged for a short minimum interval. This interval is called the:
सही उत्तर: क) Hold time
Setup time is the stable period before the edge; hold time is the stable period required after the edge.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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On a flip-flop's logic symbol, a small triangle drawn at the clock input indicates that the flip-flop is:
सही उत्तर: ख) Edge-triggered
The triangle (dynamic input indicator) shows that the device responds to a clock edge rather than to a level.
💬 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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