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
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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In indexed addressing mode, the effective address of the operand is:
सही उत्तर: ख) the address field plus the contents of an index register
Indexed addressing adds the index register to a base address in the instruction, useful for accessing array elements.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In relative (PC-relative) addressing mode, the effective address is obtained by:
सही उत्तर: घ) adding the address field (offset) to the program counter
Effective address = PC + offset; this is common for branch instructions and position-independent code.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Zero-address instructions, such as ADD with no operand fields, are used in:
सही उत्तर: घ) stack-organised computers
In a stack machine the operands are taken implicitly from the top of the stack, so no address field is needed.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The ARM processors used in most smartphones follow which design approach?
सही उत्तर: ग) RISC
ARM (originally Acorn RISC Machine) uses a reduced instruction set with simple, fixed-length instructions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following processor families is an example of CISC architecture?
सही उत्तर: ग) Intel x86
x86 has many complex, variable-length instructions; ARM, RISC-V and MIPS are RISC designs.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The Intel 8085 microprocessor is packaged in an IC with how many pins?
सही उत्तर: ग) 40
The 8085 comes in a 40-pin dual in-line package.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which shift register type is used to convert parallel data into serial data?
सही उत्तर: ग) Parallel-in serial-out (PISO)
In a PISO register all bits are loaded at once and then shifted out one bit at a time.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A T flip-flop with T permanently held at 1 acts as a:
सही उत्तर: घ) divide-by-2 frequency divider
With T = 1 the output toggles on every clock pulse, so its frequency is half the clock frequency.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The PRESET and CLEAR inputs of a flip-flop are usually:
सही उत्तर: ग) asynchronous inputs that act regardless of the clock
Preset and clear force Q to 1 or 0 immediately, without waiting for a clock edge.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An 8 MHz clock drives a 3-bit asynchronous binary counter. The frequency at the output of the last flip-flop is:
सही उत्तर: क) 1 MHz
Each flip-flop divides the frequency by 2, so three stages divide by 8: 8 MHz / 8 = 1 MHz.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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