कम्प्युटर ज्ञान – Computer Knowledge MCQ
कम्प्युटर ज्ञान – IT प्रवेश
Computer Knowledge · IT Entrance – B.Sc. CSIT, BIT & BCA · ३९५ प्रश्न
३९५ 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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What is the function of RAID (Redundant Array of Independent Disks)?
सही उत्तर: ख) To automatically back up an entire computer system
RAID configurations use multiple disk drives to achieve increased storage capacity, improved read/write speeds, or data protection against drive failure. Options 2 describes backup solutions, 3 refers to a different technology (striping), and 4 relates to virtualization.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In computer architecture, what does ‘cache memory’ primarily do?
सही उत्तर: ग) It is a small, fast memory that speeds up access to data being processed by the CPU
Cache memory acts as a buffer between the CPU and main memory (RAM). It stores frequently accessed data so the CPU doesn't have to wait for slow RAM access. Options 1 describes virtual memory, 3 is related to RAM management, and 4 concerns network protocols.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A computer system has 4GB of RAM. How much data can be stored in bytes?
सही उत्तर: ख) 4,000
1GB is equal to 1024MB. Therefore, 4GB equals 4 * 1024 MB = 4,096 MB which is equivalent to 4,096 * 1024 KB = 4,194,304 KB which is equivalent to 4,096 * 1024 bytes = 4,194,304 bytes. The closest answer in options provided is 4,000,000,000 (a common misinterpretation of GB).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the email address [email protected], ‘example.com.np’ represents:
सही उत्तर: क) The domain name
The part ‘example.com.np’ in an email address is the domain name. This identifies the specific server or network where the user's mailbox resides. The other options are incorrect as they represent different elements of the email system.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which type of RAM requires periodic refreshing to retain its data?
सही उत्तर: ख) SRAM (Static Random Access Memory)
SRAM needs frequent refreshing because it stores data as electrical charges within transistors, which leak over time. DRAM, conversely, uses capacitors that naturally lose charge and thus necessitate periodic updates. DRAM is the standard RAM type used in most computers.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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OCR (Optical Character Recognition) software primarily functions to:
सही उत्तर: ख) Recognize and convert images of text into editable text data
OCR software utilizes image processing techniques and pattern recognition algorithms to detect characters in an image and translate them into machine-readable text. The other options describe functionalities unrelated to OCR's core purpose.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In C programming, if a variable `a` is initialized to 10 and a pointer `p` is assigned the address of `a`, and then `*p` is modified to 20, what will be the value of `a`?
सही उत्तर: क) 10
The correct answer is 10. A pointer ‘p’ stores the memory address where ‘a’ resides. Changing the value at that address via ‘*p’ directly modifies the value of ‘a’. The other options incorrectly assume a change in the pointer itself or error conditions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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According to the Information Technology Act (2075), Nepal’s laws addressing electronic transactions and cybercrime are primarily governed by:
सही उत्तर: ग) The Information Technology Act
Option 2 is correct. The Information Technology Act of 2075 is the legal framework in Nepal dealing with cybercrimes, electronic transactions and related issues. The other options represent established but distinct legal domains within the country.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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MICR (Magnetic Ink Character Recognition) technology is primarily utilized for:
सही उत्तर: क) Storing large amounts of data
The correct answer is 0. MICR technology employs magnetic ink characters to encode data, mainly used in checks and bank documents to automate the processing of financial information. The other options represent different functionalities within computer systems – data storage, GUI display, and robotics.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What does the term 'bit' refer to in computer science?
सही उत्तर: ख) A ‘bit’ is the fundamental building block of digital information – a single binary digit that can be either 0 or 1.
The term 'bit' represents the smallest unit of data in computer science, representing one of two states: 0 or 1. This is the foundation of all digital information processing.
💬 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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