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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The part of a machine instruction that specifies the operation to be performed is the:
सही उत्तर: ख) opcode
The operation code (opcode) tells the CPU what to do; operands tell it what to do it on.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The Stack Pointer (SP) register holds:
सही उत्तर: घ) the address of the top of the stack
The SP points to the current top of the stack in memory and changes on every push and pop.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the Harvard architecture:
सही उत्तर: घ) instructions and data are stored in separate memories with separate buses
Harvard architecture uses separate instruction and data memories, allowing both to be accessed simultaneously.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The CMOS logic family is preferred in most modern chips mainly because of its:
सही उत्तर: ग) very low static power consumption
CMOS draws almost no current when not switching, so it consumes very little static power.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In digital electronics, the fan-out of a logic gate is:
सही उत्तर: ग) the number of gate inputs that its output can drive reliably
Fan-out is the maximum number of standard loads an output can drive without degrading logic levels.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The three possible output states of a tri-state buffer are:
सही उत्तर: ग) 0, 1 and high impedance
A tri-state buffer can drive 0 or 1 or be disconnected (high-Z), which allows many devices to share a bus.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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When more than one input of a priority encoder is active at the same time, its output gives:
सही उत्तर: ग) the code of the highest-priority active input
A priority encoder resolves multiple active inputs by encoding only the one with highest priority.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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How many 2-to-1 multiplexers are needed to build an 8-to-1 multiplexer?
सही उत्तर: घ) 7
A tree of 2:1 MUXes needs 4 + 2 + 1 = 7 units to reduce 8 inputs to 1.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A digital magnitude comparator is used to determine:
सही उत्तर: ग) whether one binary number is greater than, equal to or less than another
A magnitude comparator compares two numbers A and B and outputs A > B, A = B or A < B.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A 4-bit binary ripple up-counter starts at 0000. What does it read after 20 clock pulses?
सही उत्तर: क) 0100
A 4-bit counter counts modulo 16, so 20 mod 16 = 4 = 0100.
💬 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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