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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On success, the C function scanf() returns:
सही उत्तर: घ) The number of input items successfully assigned
scanf() returns the count of items it matched and assigned, or EOF if input fails before the first conversion.
💬 टिप्पणी / गल्ती रिपोर्ट (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)
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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