कम्प्युटर र सूचना प्रविधि (प्राविधिक)
कम्प्युटर र सूचना प्रविधि (प्राविधिक)
Computer & IT (Technical) · ५,०७६ प्रश्न
५,०७६ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कम्प्युटर र IT: 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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Subtracting the character constant '0' from a digit character such as '7' in C gives:
सही उत्तर: घ) The digit's numeric value, 7
Digit characters have consecutive codes ('0' = 48 ... '7' = 55), so '7' - '0' = 55 - 48 = 7.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In C, the statement j = i++ + ++i; (which modifies i twice without an intervening sequence point) has:
सही उत्तर: ख) Undefined behaviour
Modifying the same scalar object twice without sequencing is undefined behaviour in C, so different compilers may give different results.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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How many times does the body of the C loop for (i = 0, j = 10; i < j; i++, j--) execute?
सही उत्तर: ग) 5
The pairs (i, j) are (0,10), (1,9), (2,8), (3,7), (4,6); at (5,5) the condition i < j fails, so the body runs 5 times.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In C, what is the value of y after: int x = 5; int y = x > 3 ? (x < 4 ? 1 : 2) : 3; ?
सही उत्तर: क) 2
x > 3 is true, so the inner conditional is evaluated; x < 4 is false, so y = 2.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which video interface, common on older LCD monitors, carries digital video but no audio in its standard form?
सही उत्तर: घ) DVI
DVI was designed for video only; HDMI and DisplayPort carry audio as well.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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PS/2 keyboard and mouse connectors are of which type?
सही उत्तर: ख) 6-pin mini-DIN
PS/2 ports use a round 6-pin mini-DIN connector.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Before PCI Express, graphics cards in PCs were usually installed in which dedicated slot?
सही उत्तर: ग) AGP
The Accelerated Graphics Port (AGP) was a dedicated graphics slot, later replaced by PCIe x16.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A single USB host controller can address at most how many devices, including hubs?
सही उत्तर: क) 127
USB uses a 7-bit device address; address 0 is for unconfigured devices, leaving 127 usable addresses.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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When POST finds a fault before the display is working, the BIOS reports the problem mainly through:
सही उत्तर: ख) Beep codes
Since the screen may not work yet, the BIOS uses patterns of beeps from the speaker to indicate errors such as RAM failure.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In an LGA (Land Grid Array) CPU socket, such as those used by Intel desktop processors:
सही उत्तर: घ) The pins are in the socket and the processor has flat contact pads
In LGA the spring pins are part of the motherboard socket, whereas in PGA the pins are on the CPU.
💬 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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