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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In Linux, the C library function printf() eventually outputs its text by invoking which system call?
सही उत्तर: ख) write()
printf() formats the text in user space and then calls the write() system call on standard output (file descriptor 1).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The area of a disk used by the operating system to hold pages or processes moved out of main memory is called:
सही उत्तर: क) Swap space
Swap space (a swap partition or page file) extends RAM by holding inactive pages on disk.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Using a memory area to hold data temporarily while it is transferred between two devices that work at different speeds is called:
सही उत्तर: घ) Buffering
A buffer smooths out the speed mismatch between producer and consumer of data, such as a fast CPU and a slow printer.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Repeatedly checking a device's status register to see whether it is ready, instead of waiting for an interrupt, is called:
सही उत्तर: ग) Polling
In polling (busy waiting) the CPU keeps testing the device status, which wastes CPU time if the device is slow.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A hypervisor that runs directly on the hardware without a host operating system, such as VMware ESXi, is a:
सही उत्तर: ख) Type 1 (bare-metal) hypervisor
Type 1 hypervisors run on bare hardware; Type 2 hypervisors such as VirtualBox run as applications on a host OS.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a microkernel operating system design:
सही उत्तर: क) Only minimal services run in kernel mode, while drivers and file systems run as user-space servers
A microkernel keeps only essentials (IPC, basic scheduling, memory) in the kernel, improving reliability at some cost in performance.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which UNIX inter-process communication mechanism provides a one-way byte stream, typically between a parent and its child process?
सही उत्तर: घ) Ordinary (anonymous) pipe
An ordinary pipe created with pipe() has a read end and a write end, and data flows in one direction only.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In Microsoft Windows, the shortcut Ctrl + Shift + Esc directly opens the:
सही उत्तर: ग) Task Manager
Ctrl + Shift + Esc opens Task Manager, where running processes and performance can be viewed and processes ended.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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GRUB, used on most Linux systems, is a:
सही उत्तर: ख) Boot loader
GRUB (GRand Unified Bootloader) loads the kernel at start-up and lets the user choose between installed operating systems.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which Linux file stores user account information such as the username, UID and home directory?
सही उत्तर: क) /etc/passwd
/etc/passwd has one line per account; encrypted passwords are kept separately in /etc/shadow.
💬 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।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
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