कम्प्युटर ज्ञान – Computer Knowledge MCQ
कम्प्युटर ज्ञान – IT प्रवेश
Computer Knowledge · IT Entrance – B.Sc. CSIT, BIT & BCA · ४०७ प्रश्न
४०७ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कम्प्युटर ज्ञान: 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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Which of the following best describes RAM? a) Non-volatile storage for permanent data. b) Random Access Memory, which is volatile and used for temporary data during program execution. c) Read-Only Memory, designed for storing firmware. d) Flash memory used in USB drives.
सही उत्तर: ख) b
RAM (Random Access Memory) is the correct answer. It's volatile meaning data is lost when power is off. Options a and c describe other types of storage, while d refers to flash memory.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the purpose of a compiler? a) To translate code directly into machine instructions. b) To analyze and transform source code into an equivalent intermediate representation. c) To execute the program directly. d) To optimize memory allocation during runtime.
सही उत्तर: ख) b
The correct answer is (b). A compiler translates high-level programming language code into machine code. Options a and c are incorrect as they describe direct execution or translation without intermediate steps. Option d describes a different function – memory management.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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DNS (Domain Name System) ले मुख्य रूपमा कुन कार्य गर्छ?
सही उत्तर: ख) वेबसाइटहरूको नामहरूलाई IP ठेगानाहरूमा अनुवाद गर्नुहोस्
DNS वेबसाइटहरूको नामहरू (जस्तै, google.com) लाई त्यसको IP माथ्ममा (जस्तै, 172.217.160.142) अनुवाद गर्न प्रयोग हुन्छ। अन्य विकल्पहरू DNS को मुख्य कार्यलाई गलत प्रस्तुत गर्दछ।
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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वर्चुअल मेमोरीको उद्देश्य के हो?
सही उत्तर: ख) भण्डारण उपकरणको लागत कम गर्नु
Virtual memory is a technique that allows a computer to use more memory than physically available by using part of the hard disk as an extension of RAM. This helps manage limited physical memory resources efficiently. The other options describe different computing concepts.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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OSI ढाँचामा, एक राउटर मुख्य रूपमा कता कार्य गर्दछ?
सही उत्तर: ग) Network Layer
A router primarily operates at the Network Layer (Layer 3) of the OSI model. It uses IP addresses to forward data packets between networks. The other layers handle different aspects of communication, but not routing.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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एक अर्कै (uncompressed) 640 × 480 छवि 8 बिट प्रति पिक्सेल प्रयोग गर्दछ। यसको आकार के हो?
सही उत्तर: ख) 1 MB
The image size is calculated as follows: width (640 pixels) * height (480 pixels) * bits per pixel (8). This equals 262,144 bytes or 256 KB. The other options are incorrect calculations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following represents the correct order of storage devices from fastest to slowest?
सही उत्तर: क) SSD, HDD, Flash Drive, RAM
RAM is the fastest memory type used in computers, followed by SSDs (Solid State Drives), HDDs (Hard Disk Drives) and finally flash drives. The other options present incorrect sequences of storage device speeds.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following best describes RAM (Random Access Memory)? (a) A storage device for long-term data retention. (b) A volatile memory used by computers to store data that is currently being used. (c) A type of hard drive for storing operating systems. (d) A component that controls the speed of a computer's processor.
सही उत्तर: ख) (b) A volatile memory used by computers to store data that is currently being used.
RAM is temporary storage for actively running programs and data, losing its contents when power is turned off. Option (a) describes long-term storage like hard drives, (c) refers to a type of hard drive, and (d) relates to the CPU.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What does the term ‘cache memory’ primarily achieve? (a) To permanently store all operating system files. (b) To speed up access to frequently used data by storing copies of it closer to the CPU. (c) To act as a backup storage device in case of power failure. (d) To translate high-level programming languages into machine code.
सही उत्तर: ख) (b) To speed up access to frequently used data by storing copies of it closer to the CPU.
Cache memory is a small, fast memory that stores frequently accessed data for quicker retrieval, thus improving performance. Options (a), (c), and (d) describe other computer functions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In computer networks, what does the acronym ‘TCP’ stand for? (a) Total Control Protocol (b) Transmission Control Protocol (c) Technical Communication Process (d) Terminal Connection Program
सही उत्तर: ख) (b) Transmission Control Protocol
TCP is a fundamental protocol in computer networks responsible for reliable data transmission. It ensures ordered delivery and error detection. Options (a), (c), and (d) are not correct network protocols.
💬 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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