कम्प्युटर ज्ञान – Computer Knowledge MCQ
कम्प्युटर ज्ञान – IT प्रवेश
Computer Knowledge · IT Entrance – B.Sc. CSIT, BIT & BCA · ४०५ प्रश्न
४०५ 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 the purpose of a firewall in a computer network?
सही उत्तर: ख) To prevent unauthorized access to a network
A firewall acts as a security barrier, controlling incoming and outgoing network traffic based on predefined rules, thereby preventing unauthorized access. The other options represent different network functions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which data type is most suitable for storing a whole number greater than 255?
सही उत्तर: ख) Long integer
The ‘long integer’ data type in many programming languages can store larger numbers than ‘short integer’. 'Float' represents floating-point numbers and ‘character’ is used for storing single characters.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the primary function of a compiler in the software development process?
सही उत्तर: ख) To translate high-level programming language into machine code
A compiler translates source code written in languages like C++ or Java into equivalent machine code that the computer can understand and run. The other options describe different aspects of software development or system administration.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the primary advantage of using an operating system (OS)?
सही उत्तर: ख) To provide a user-friendly interface for interacting with computers
The OS manages the complex interactions between software and hardware. The other options represent different capabilities or roles of an operating system. It is the core of managing a computer.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In programming, what is the purpose of a ‘loop’?
सही उत्तर: ख) To execute a block of code repeatedly
A loop allows repetitive execution of a set of instructions. The other options describe different programming constructs like variable assignment, output functions or temporary data storage. This is fundamental to iterative processing.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What does the term ‘bandwidth’ primarily refer to in computer networks?
सही उत्तर: ख) The range of frequencies available for transmission
Bandwidth refers to the capacity of a communication channel, specifically the range of frequencies it can handle. The other options relate to different aspects of networking infrastructure or services. This aligns with common understanding in network technology.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Consider a simple Boolean expression: Y = (A AND B) OR (NOT C). If A=True, B=False and C=True, what is the value of Y?
सही उत्तर: ख) False
First evaluate ‘A AND B’ which is False. Then evaluate ‘NOT C’, which is False. Finally, evaluate ‘False OR False’, resulting in False.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What does 'bit' stand for in computer science?
सही उत्तर: घ) Binary Digit
A 'bit' is the fundamental unit of information in a digital system. It represents a single binary value – either 0 or 1. The other options are incorrect descriptions of related concepts.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following best describes the primary function of a CPU (Central Processing Unit)?
सही उत्तर: क) Storing data permanently for future use
The CPU is responsible for executing instructions and performing calculations. The other options describe functions of other components like RAM, the graphics card, or the network interface. This aligns with the core role of the processor.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the function of a ‘cache’ in computer architecture?
सही उत्तर: ग) To temporarily store frequently accessed data for faster retrieval
A cache stores recently accessed data to speed up future requests. This dramatically improves performance. Options 1, 3 and 4 describe other distinct functions.
💬 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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